japanese-conjugation-drill/conjugation/drill.js

// drill.js

var words = {

  "行く" : {

    "group" : "iku",

    "conjugations" : {

      "plain" : "行[い]く",
      "negative" : "行[い]かない",
      "polite" : "行[い]きます",
      "polite negative" : "行[い]きません",
      "past" : "行[い]った",
      "past negative" : "行[い]かなかった",
      "polite past" : "行[い]きました",
      "polite past negative" : "行[い]きませんでした",
      "te-form" : "行[い]って",
      "te-form negative" : "行[い]かなくて",
      "potential" : "行[い]ける",
      "potential negative" : "行[い]けない",
      "imperative" : "行[い]け",
      "imperative negative" : "行[い]くな",
      "passive" : "行[い]かれる",
      "passive negative" : "行[い]かれない",
      "causative" : "行[い]かせる",
      "causative negative" : "行[い]かせない",
      "causative passive" : "行[い]かせられる",
      "causative passive negative" : "行[い]かせられない",
      "progressive" : "行[い]っている",
      "progressive negative" : "行[い]っていない",
      "polite progressive" : "行[い]っています",
      "polite progressive negative" : "行[い]っていません",
      "progressive past" : "行[い]っていた",
      "progressive past negative" : "行[い]っていなかった",
      "polite progressive past" : "行[い]っていました",
      "polite progressive past negative" : "行[い]っていませんでした",
    },
  },

  "飲む" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "飲[の]む",
      "negative" : "飲[の]まない",
      "polite" : "飲[の]みます",
      "polite negative" : "飲[の]みません",
      "past" : "飲[の]んだ",
      "past negative" : "飲[の]まなかった",
      "polite past" : "飲[の]みました",
      "polite past negative" : "飲[の]みませんでした",
      "te-form" : "飲[の]んで",
      "te-form negative" : "飲[の]まなくて",
      "potential" : "飲[の]める",
      "potential negative" : "飲[の]めない",
      "imperative" : "飲[の]め",
      "imperative negative" : "飲[の]むな",
      "passive" : "飲[の]まれる",
      "passive negative" : "飲[の]まれない",
      "causative" : "飲[の]ませる",
      "causative negative" : "飲[の]ませない",
      "causative passive" : "飲[の]ませられる",
      "causative passive negative" : "飲[の]ませられない",
      "progressive" : "飲[の]んでいる",
      "progressive negative" : "飲[の]んでいない",
      "polite progressive" : "飲[の]んでいます",
      "polite progressive negative" : "飲[の]んでいません",
      "progressive past" : "飲[の]んでいた",
      "progressive past negative" : "飲[の]んでいなかった",
      "polite progressive past" : "飲[の]んでいました",
      "polite progressive past negative" : "飲[の]んでいませんでした",
    },
  },

  "作る" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "作[つく]る",
      "negative" : "作[つく]らない",
      "polite" : "作[つく]ります",
      "polite negative" : "作[つく]りません",
      "past" : "作[つく]った",
      "past negative" : "作[つく]らなかった",
      "polite past" : "作[つく]りました",
      "polite past negative" : "作[つく]りませんでした",
      "te-form" : "作[つく]って",
      "te-form negative" : "作[つく]らなくて",
      "potential" : "作[つく]れる",
      "potential negative" : "作[つく]れない",
      "imperative" : "作[つく]れ",
      "imperative negative" : "作[つく]るな",
      "passive" : "作[つく]られる",
      "passive negative" : "作[つく]られない",
      "causative" : "作[つく]らせる",
      "causative negative" : "作[つく]らせない",
      "causative passive" : "作[つく]らせられる",
      "causative passive negative" : "作[つく]らせられない",
      "progressive" : "作[つく]っている",
      "progressive negative" : "作[つく]っていない",
      "polite progressive" : "作[つく]っています",
      "polite progressive negative" : "作[つく]っていません",
      "progressive past" : "作[つく]っていた",
      "progressive past negative" : "作[つく]っていなかった",
      "polite progressive past" : "作[つく]っていました",
      "polite progressive past negative" : "作[つく]っていませんでした",
    },
  },

  "買い戻す" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "買[か]い戻[もど]す",
      "negative" : "買[か]い戻[もど]さない",
      "polite" : "買[か]い戻[もど]します",
      "polite negative" : "買[か]い戻[もど]しません",
      "past" : "買[か]い戻[もど]した",
      "past negative" : "買[か]い戻[もど]さなかった",
      "polite past" : "買[か]い戻[もど]しました",
      "polite past negative" : "買[か]い戻[もど]しませんでした",
      "te-form" : "買[か]い戻[もど]して",
      "te-form negative" : "買[か]い戻[もど]さなくて",
      "potential" : "買[か]い戻[もど]せる",
      "potential negative" : "買[か]い戻[もど]せない",
      "imperative" : "買[か]い戻[もど]せ",
      "imperative negative" : "買[か]い戻[もど]すな",
      "passive" : "買[か]い戻[もど]される",
      "passive negative" : "買[か]い戻[もど]されない",
      "causative" : "買[か]い戻[もど]させる",
      "causative negative" : "買[か]い戻[もど]させない",
      "causative passive" : "買[か]い戻[もど]させられる",
      "causative passive negative" : "買[か]い戻[もど]させられない",
      "progressive" : "買[か]い戻[もど]している",
      "progressive negative" : "買[か]い戻[もど]していない",
      "polite progressive" : "買[か]い戻[もど]しています",
      "polite progressive negative" : "買[か]い戻[もど]していません",
      "progressive past" : "買[か]い戻[もど]していた",
      "progressive past negative" : "買[か]い戻[もど]していなかった",
      "polite progressive past" : "買[か]い戻[もど]していました",
      "polite progressive past negative" : "買[か]い戻[もど]していませんでした",
    },
  },

  "見る" : {

    "group" : "ichidan",

    "conjugations" : {

      "plain" : "見[み]る",
      "negative" : "見[み]ない",
      "polite" : "見[み]ます",
      "polite negative" : "見[み]ません",
      "past" : "見[み]た",
      "past negative" : "見[み]なかった",
      "polite past" : "見[み]ました",
      "polite past negative" : "見[み]ませんでした",
      "te-form" : "見[み]て",
      "te-form negative" : "見[み]なくて",
      "potential" : "見[み]られる",
      "potential negative" : "見[み]られない",
      "imperative" : "見[み]ろ",
      "imperative negative" : "見[み]るな",
      "passive" : "見[み]られる",
      "passive negative" : "見[み]られない",
      "causative" : "見[み]させる",
      "causative negative" : "見[み]させない",
      "causative passive" : "見[み]させられる",
      "causative passive negative" : "見[み]させられない",
      "progressive" : "見[み]ている",
      "progressive negative" : "見[み]ていない",
      "polite progressive" : "見[み]ています",
      "polite progressive negative" : "見[み]ていません",
      "progressive past" : "見[み]ていた",
      "progressive past negative" : "見[み]ていなかった",
      "polite progressive past" : "見[み]ていました",
      "polite progressive past negative" : "見[み]ていませんでした",
    },
  },

  "食べる" : {

    "group" : "ichidan",

    "conjugations" : {

      "plain" : "食[た]べる",
      "negative" : "食[た]べない",
      "polite" : "食[た]べます",
      "polite negative" : "食[た]べません",
      "past" : "食[た]べた",
      "past negative" : "食[た]べなかった",
      "polite past" : "食[た]べました",
      "polite past negative" : "食[た]べませんでした",
      "te-form" : "食[た]べて",
      "te-form negative" : "食[た]べなくて",
      "potential" : "食[た]べられる",
      "potential negative" : "食[た]べられない",
      "imperative" : "食[た]べろ",
      "imperative negative" : "食[た]べるな",
      "passive" : "食[た]べられる",
      "passive negative" : "食[た]べられない",
      "causative" : "食[た]べさせる",
      "causative negative" : "食[た]べさせない",
      "causative passive" : "食[た]べさせられる",
      "causative passive negative" : "食[た]べさせられない",
      "progressive" : "食[た]べている",
      "progressive negative" : "食[た]べていない",
      "polite progressive" : "食[た]べています",
      "polite progressive negative" : "食[た]べていません",
      "progressive past" : "食[た]べていた",
      "progressive past negative" : "食[た]べていなかった",
      "polite progressive past" : "食[た]べていました",
      "polite progressive past negative" : "食[た]べていませんでした",
    },
  },

  "起きる" : {

    "group" : "ichidan",

    "conjugations" : {

      "plain" : "起[お]きる",
      "negative" : "起[お]きない",
      "polite" : "起[お]きます",
      "polite negative" : "起[お]きません",
      "past" : "起[お]きた",
      "past negative" : "起[お]きなかった",
      "polite past" : "起[お]きました",
      "polite past negative" : "起[お]きませんでした",
      "te-form" : "起[お]きて",
      "te-form negative" : "起[お]きなくて",
      "potential" : "起[お]きられる",
      "potential negative" : "起[お]きられない",
      "imperative" : "起[お]きろ",
      "imperative negative" : "起[お]きるな",
      "passive" : "起[お]きられる",
      "passive negative" : "起[お]きられない",
      "causative" : "起[お]きさせる",
      "causative negative" : "起[お]きさせない",
      "causative passive" : "起[お]きさせられる",
      "causative passive negative" : "起[お]きさせられない",
      "progressive" : "起[お]きている",
      "progressive negative" : "起[お]きていない",
      "polite progressive" : "起[お]きています",
      "polite progressive negative" : "起[お]きていません",
      "progressive past" : "起[お]きていた",
      "progressive past negative" : "起[お]きていなかった",
      "polite progressive past" : "起[お]きていました",
      "polite progressive past negative" : "起[お]きていませんでした",
    },
  },

  "買い換える" : {

    "group" : "ichidan",

    "conjugations" : {

      "plain" : "買[か]い換[か]える",
      "negative" : "買[か]い換[か]えない",
      "polite" : "買[か]い換[か]えます",
      "polite negative" : "買[か]い換[か]えません",
      "past" : "買[か]い換[か]えた",
      "past negative" : "買[か]い換[か]えなかった",
      "polite past" : "買[か]い換[か]えました",
      "polite past negative" : "買[か]い換[か]えませんでした",
      "te-form" : "買[か]い換[か]えて",
      "te-form negative" : "買[か]い換[か]えなくて",
      "potential" : "買[か]い換[か]えられる",
      "potential negative" : "買[か]い換[か]えられない",
      "imperative" : "買[か]い換[か]えろ",
      "imperative negative" : "買[か]い換[か]えるな",
      "passive" : "買[か]い換[か]えられる",
      "passive negative" : "買[か]い換[か]えられない",
      "causative" : "買[か]い換[か]えさせる",
      "causative negative" : "買[か]い換[か]えさせない",
      "causative passive" : "買[か]い換[か]えさせられる",
      "causative passive negative" : "買[か]い換[か]えさせられない",
      "progressive" : "買[か]い換[か]えている",
      "progressive negative" : "買[か]い換[か]えていない",
      "polite progressive" : "買[か]い換[か]えています",
      "polite progressive negative" : "買[か]い換[か]えていません",
      "progressive past" : "買[か]い換[か]えていた",
      "progressive past negative" : "買[か]い換[か]えていなかった",
      "polite progressive past" : "買[か]い換[か]えていました",
      "polite progressive past negative" : "買[か]い換[か]えていませんでした",
    },
  },

  "来る" : {

    "group" : "kuru",

    "conjugations" : {

      "plain" : "来[く]る",
      "negative" : "来[こ]ない",
      "polite" : "来[き]ます",
      "polite negative" : "来[き]ません",
      "past" : "来[き]た",
      "past negative" : "来[こ]なかった",
      "polite past" : "来[き]ました",
      "polite past negative" : "来[き]ませんでした",
      "te-form" : "来[き]て",
      "te-form negative" : "来[こ]なくて",
      "potential" : "来[こ]られる",
      "potential negative" : "来[こ]られない",
      "imperative" : "来[こ]い",
      "imperative negative" : "来[く]るな",
      "passive" : "来[こ]られる",
      "passive negative" : "来[こ]られない",
      "causative" : "来[こ]させる",
      "causative negative" : "来[こ]させない",
      "causative passive" : "来[こ]させられる",
      "causative passive negative" : "来[こ]させられない",
      "progressive" : "来[き]ている",
      "progressive negative" : "来[き]ていない",
      "polite progressive" : "来[き]ています",
      "polite progressive negative" : "来[き]ていません",
      "progressive past" : "来[き]ていた",
      "progressive past negative" : "来[き]ていなかった",
      "polite progressive past" : "来[き]ていました",
      "polite progressive past negative" : "来[き]ていませんでした",
    },
  },

  "する" : {

    "group" : "suru",

    "conjugations" : {

      "plain" : "する",
      "negative" : "しない",
      "polite" : "します",
      "polite negative" : "しません",
      "past" : "した",
      "past negative" : "しなかった",
      "polite past" : "しました",
      "polite past negative" : "しませんでした",
      "imperative" : "しろ",
      "imperative negative" : "さるな",
      "progressive" : "している",
      "progressive negative" : "していない",
      "polite progressive" : "しています",
      "polite progressive negative" : "していません",
      "progressive past" : "していた",
      "progressive past negative" : "していなかった",
      "polite progressive past" : "していました",
      "polite progressive past negative" : "していませんでした",
    },
  },

  "勉強する" : {

    "group" : "suru",

    "conjugations" : {

      "plain" : "勉[べん]強[きょう]する",
      "negative" : "勉[べん]強[きょう]しない",
      "polite" : "勉[べん]強[きょう]します",
      "polite negative" : "勉[べん]強[きょう]しません",
      "past" : "勉[べん]強[きょう]した",
      "past negative" : "勉[べん]強[きょう]しなかった",
      "polite past" : "勉[べん]強[きょう]しました",
      "polite past negative" : "勉[べん]強[きょう]しませんでした",
      "imperative" : "勉[べん]強[きょう]しろ",
      "imperative negative" : "勉[べん]強[きょう]さるな",
      "progressive" : "勉[べん]強[きょう]している",
      "progressive negative" : "勉[べん]強[きょう]していない",
      "polite progressive" : "勉[べん]強[きょう]しています",
      "polite progressive negative" : "勉[べん]強[きょう]していません",
      "progressive past" : "勉[べん]強[きょう]していた",
      "progressive past negative" : "勉[べん]強[きょう]していなかった",
      "polite progressive past" : "勉[べん]強[きょう]していました",
      "polite progressive past negative" : "勉[べん]強[きょう]していませんでした",
    },
  },

  "電話する" : {

    "group" : "suru",

    "conjugations" : {

      "plain" : "電[でん]話[わ]する",
      "negative" : "電[でん]話[わ]しない",
      "polite" : "電[でん]話[わ]します",
      "polite negative" : "電[でん]話[わ]しません",
      "past" : "電[でん]話[わ]した",
      "past negative" : "電[でん]話[わ]しなかった",
      "polite past" : "電[でん]話[わ]しました",
      "polite past negative" : "電[でん]話[わ]しませんでした",
      "imperative" : "電[でん]話[わ]しろ",
      "imperative negative" : "電[でん]話[わ]さるな",
      "progressive" : "電[でん]話[わ]している",
      "progressive negative" : "電[でん]話[わ]していない",
      "polite progressive" : "電[でん]話[わ]しています",
      "polite progressive negative" : "電[でん]話[わ]していません",
      "progressive past" : "電[でん]話[わ]していた",
      "progressive past negative" : "電[でん]話[わ]していなかった",
      "polite progressive past" : "電[でん]話[わ]していました",
      "polite progressive past negative" : "電[でん]話[わ]していませんでした",
    },
  },

  "読む" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "読[よ]む",
      "negative" : "読[よ]まない",
      "polite" : "読[よ]みます",
      "polite negative" : "読[よ]みません",
      "past" : "読[よ]んだ",
      "past negative" : "読[よ]まなかった",
      "polite past" : "読[よ]みました",
      "polite past negative" : "読[よ]みませんでした",
      "te-form" : "読[よ]んで",
      "te-form negative" : "読[よ]まなくて",
      "potential" : "読[よ]める",
      "potential negative" : "読[よ]めない",
      "imperative" : "読[よ]め",
      "imperative negative" : "読[よ]むな",
      "passive" : "読[よ]まれる",
      "passive negative" : "読[よ]まれない",
      "causative" : "読[よ]ませる",
      "causative negative" : "読[よ]ませない",
      "causative passive" : "読[よ]ませられる",
      "causative passive negative" : "読[よ]ませられない",
      "progressive" : "読[よ]んでいる",
      "progressive negative" : "読[よ]んでいない",
      "polite progressive" : "読[よ]んでいます",
      "polite progressive negative" : "読[よ]んでいません",
      "progressive past" : "読[よ]んでいた",
      "progressive past negative" : "読[よ]んでいなかった",
      "polite progressive past" : "読[よ]んでいました",
      "polite progressive past negative" : "読[よ]んでいませんでした",
    },
  },

  "思う" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "思[おも]う",
      "negative" : "思[おも]わない",
      "polite" : "思[おも]います",
      "polite negative" : "思[おも]いません",
      "past" : "思[おも]った",
      "past negative" : "思[おも]わなかった",
      "polite past" : "思[おも]いました",
      "polite past negative" : "思[おも]いませんでした",
      "te-form" : "思[おも]って",
      "te-form negative" : "思[おも]わなくて",
      "potential" : "思[おも]える",
      "potential negative" : "思[おも]えない",
      "imperative" : "思[おも]え",
      "imperative negative" : "思[おも]うな",
      "passive" : "思[おも]われる",
      "passive negative" : "思[おも]われない",
      "causative" : "思[おも]わせる",
      "causative negative" : "思[おも]わせない",
      "causative passive" : "思[おも]わせられる",
      "causative passive negative" : "思[おも]わせられない",
      "progressive" : "思[おも]っている",
      "progressive negative" : "思[おも]っていない",
      "polite progressive" : "思[おも]っています",
      "polite progressive negative" : "思[おも]っていません",
      "progressive past" : "思[おも]っていた",
      "progressive past negative" : "思[おも]っていなかった",
      "polite progressive past" : "思[おも]っていました",
      "polite progressive past negative" : "思[おも]っていませんでした",
    },
  },

  "買い与える" : {

    "group" : "ichidan",

    "conjugations" : {

      "plain" : "買[か]い与[あた]える",
      "negative" : "買[か]い与[あた]えない",
      "polite" : "買[か]い与[あた]えます",
      "polite negative" : "買[か]い与[あた]えません",
      "past" : "買[か]い与[あた]えた",
      "past negative" : "買[か]い与[あた]えなかった",
      "polite past" : "買[か]い与[あた]えました",
      "polite past negative" : "買[か]い与[あた]えませんでした",
      "te-form" : "買[か]い与[あた]えて",
      "te-form negative" : "買[か]い与[あた]えなくて",
      "potential" : "買[か]い与[あた]えられる",
      "potential negative" : "買[か]い与[あた]えられない",
      "imperative" : "買[か]い与[あた]えろ",
      "imperative negative" : "買[か]い与[あた]えるな",
      "passive" : "買[か]い与[あた]えられる",
      "passive negative" : "買[か]い与[あた]えられない",
      "causative" : "買[か]い与[あた]えさせる",
      "causative negative" : "買[か]い与[あた]えさせない",
      "causative passive" : "買[か]い与[あた]えさせられる",
      "causative passive negative" : "買[か]い与[あた]えさせられない",
      "progressive" : "買[か]い与[あた]えている",
      "progressive negative" : "買[か]い与[あた]えていない",
      "polite progressive" : "買[か]い与[あた]えています",
      "polite progressive negative" : "買[か]い与[あた]えていません",
      "progressive past" : "買[か]い与[あた]えていた",
      "progressive past negative" : "買[か]い与[あた]えていなかった",
      "polite progressive past" : "買[か]い与[あた]えていました",
      "polite progressive past negative" : "買[か]い与[あた]えていませんでした",
    },
  },

  "座る" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "座[すわ]る",
      "negative" : "座[すわ]らない",
      "polite" : "座[すわ]ります",
      "polite negative" : "座[すわ]りません",
      "past" : "座[すわ]った",
      "past negative" : "座[すわ]らなかった",
      "polite past" : "座[すわ]りました",
      "polite past negative" : "座[すわ]りませんでした",
      "te-form" : "座[すわ]って",
      "te-form negative" : "座[すわ]らなくて",
      "potential" : "座[すわ]れる",
      "potential negative" : "座[すわ]れない",
      "imperative" : "座[すわ]れ",
      "imperative negative" : "座[すわ]るな",
      "passive" : "座[すわ]られる",
      "passive negative" : "座[すわ]られない",
      "causative" : "座[すわ]らせる",
      "causative negative" : "座[すわ]らせない",
      "causative passive" : "座[すわ]らせられる",
      "causative passive negative" : "座[すわ]らせられない",
      "progressive" : "座[すわ]っている",
      "progressive negative" : "座[すわ]っていない",
      "polite progressive" : "座[すわ]っています",
      "polite progressive negative" : "座[すわ]っていません",
      "progressive past" : "座[すわ]っていた",
      "progressive past negative" : "座[すわ]っていなかった",
      "polite progressive past" : "座[すわ]っていました",
      "polite progressive past negative" : "座[すわ]っていませんでした",
    },
  },

  "休む" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "休[やす]む",
      "negative" : "休[やす]まない",
      "polite" : "休[やす]みます",
      "polite negative" : "休[やす]みません",
      "past" : "休[やす]んだ",
      "past negative" : "休[やす]まなかった",
      "polite past" : "休[やす]みました",
      "polite past negative" : "休[やす]みませんでした",
      "te-form" : "休[やす]んで",
      "te-form negative" : "休[やす]まなくて",
      "potential" : "休[やす]める",
      "potential negative" : "休[やす]めない",
      "imperative" : "休[やす]め",
      "imperative negative" : "休[やす]むな",
      "passive" : "休[やす]まれる",
      "passive negative" : "休[やす]まれない",
      "causative" : "休[やす]ませる",
      "causative negative" : "休[やす]ませない",
      "causative passive" : "休[やす]ませられる",
      "causative passive negative" : "休[やす]ませられない",
      "progressive" : "休[やす]んでいる",
      "progressive negative" : "休[やす]んでいない",
      "polite progressive" : "休[やす]んでいます",
      "polite progressive negative" : "休[やす]んでいません",
      "progressive past" : "休[やす]んでいた",
      "progressive past negative" : "休[やす]んでいなかった",
      "polite progressive past" : "休[やす]んでいました",
      "polite progressive past negative" : "休[やす]んでいませんでした",
    },
  },

  "足す" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "足[た]す",
      "negative" : "足[た]さない",
      "polite" : "足[た]します",
      "polite negative" : "足[た]しません",
      "past" : "足[た]した",
      "past negative" : "足[た]さなかった",
      "polite past" : "足[た]しました",
      "polite past negative" : "足[た]しませんでした",
      "te-form" : "足[た]して",
      "te-form negative" : "足[た]さなくて",
      "potential" : "足[た]せる",
      "potential negative" : "足[た]せない",
      "imperative" : "足[た]せ",
      "imperative negative" : "足[た]すな",
      "passive" : "足[た]される",
      "passive negative" : "足[た]されない",
      "causative" : "足[た]させる",
      "causative negative" : "足[た]させない",
      "causative passive" : "足[た]させられる",
      "causative passive negative" : "足[た]させられない",
      "progressive" : "足[た]している",
      "progressive negative" : "足[た]していない",
      "polite progressive" : "足[た]しています",
      "polite progressive negative" : "足[た]していません",
      "progressive past" : "足[た]していた",
      "progressive past negative" : "足[た]していなかった",
      "polite progressive past" : "足[た]していました",
      "polite progressive past negative" : "足[た]していませんでした",
    },
  },

  "歌う" : {

    "group" : "godan",

    "conjugations" : {

      "plain" : "歌[うた]う",
      "negative" : "歌[うた]わない",
      "polite" : "歌[うた]います",
      "polite negative" : "歌[うた]いません",
      "past" : "歌[うた]った",
      "past negative" : "歌[うた]わなかった",
      "polite past" : "歌[うた]いました",
      "polite past negative" : "歌[うた]いませんでした",
      "te-form" : "歌[うた]って",
      "te-form negative" : "歌[うた]わなくて",
      "potential" : "歌[うた]える",
      "potential negative" : "歌[うた]えない",
      "imperative" : "歌[うた]え",
      "imperative negative" : "歌[うた]うな",
      "passive" : "歌[うた]われる",
      "passive negative" : "歌[うた]われない",
      "causative" : "歌[うた]わせる",
      "causative negative" : "歌[うた]わせない",
      "causative passive" : "歌[うた]わせられる",
      "causative passive negative" : "歌[うた]わせられない",
      "progressive" : "歌[うた]っている",
      "progressive negative" : "歌[うた]っていない",
      "polite progressive" : "歌[うた]っています",
      "polite progressive negative" : "歌[うた]っていません",
      "progressive past" : "歌[うた]っていた",
      "progressive past negative" : "歌[うた]っていなかった",
      "polite progressive past" : "歌[うた]っていました",
      "polite progressive past negative" : "歌[うた]っていませんでした",
    },
  },

  "高い" : {

    "group" : "i-adjective",

    "conjugations" : {

      "plain" : "高[たか]い",
      "negative" : "高[たか]くない",
      "polite" : "高[たか]いです",
      "polite negative" : "高[たか]くないです",
      "past" : "高[たか]かった",
      "past negative" : "高[たか]くなかった",
      "polite past" : "高[たか]かったです",
      "polite past negative" : "高[たか]くなかったです",
    },
  },

  "面白い" : {

    "group" : "i-adjective",

    "conjugations" : {

      "plain" : "面白[おもしろ]い",
      "negative" : "面白[おもしろ]くない",
      "polite" : "面白[おもしろ]いです",
      "polite negative" : "面白[おもしろ]くないです",
      "past" : "面白[おもしろ]かった",
      "past negative" : "面白[おもしろ]くなかった",
      "polite past" : "面白[おもしろ]かったです",
      "polite past negative" : "面白[おもしろ]くなかったです",
    },
  },

  "暗い" : {

    "group" : "i-adjective",

    "conjugations" : {

      "plain" : "暗[くら]い",
      "negative" : "暗[くら]くない",
      "polite" : "暗[くら]いです",
      "polite negative" : "暗[くら]くないです",
      "past" : "暗[くら]かった",
      "past negative" : "暗[くら]くなかった",
      "polite past" : "暗[くら]かったです",
      "polite past negative" : "暗[くら]くなかったです",
    },
  },

  "いい" : {

    "group" : "i-adjective",

    "conjugations" : {

      "plain" : "いい",
      "negative" : "良[よ]くない",
      "polite" : "いいです",
      "polite negative" : "良[よ]くないです",
      "past" : "良[よ]かった",
      "past negative" : "良[よ]くなかった",
      "polite past" : "良[よ]かったです",
      "polite past negative" : "良[よ]くなかったです",
    },
  },

  "有名な" : {

    "group" : "na-adjective",

    "conjugations" : {

      "plain" : "有名[ゆうめい]だ",
      "negative" : "有名[ゆうめい]ではない",
      "polite" : "有名[ゆうめい]です",
      "polite negative" : "有名[ゆうめい]ではありません",
      "past" : "有名[ゆうめい]だった",
      "past negative" : "有名[ゆうめい]ではなかった",
      "polite past" : "有名[ゆうめい]でした",
      "polite past negative" : "有名[ゆうめい]ではありませんでした",
    },
  },

  "好きな" : {

    "group" : "na-adjective",

    "conjugations" : {

      "plain" : "好[き]だ",
      "negative" : "好[き]ではない",
      "polite" : "好[き]です",
      "polite negative" : "好[き]ではありません",
      "past" : "好[き]だった",
      "past negative" : "好[き]ではなかった",
      "polite past" : "好[き]でした",
      "polite past negative" : "好[き]ではありませんでした",
    },
  },

  "元気な" : {

    "group" : "na-adjective",

    "conjugations" : {

      "plain" : "元[げん]気[き]だ",
      "negative" : "元[げん]気[き]ではない",
      "polite" : "元[げん]気[き]です",
      "polite negative" : "元[げん]気[き]ではありません",
      "past" : "元[げん]気[き]だった",
      "past negative" : "元[げん]気[き]ではなかった",
      "polite past" : "元[げん]気[き]でした",
      "polite past negative" : "元[げん]気[き]ではありませんでした",
    },
  },

  "意地悪な" : {

    "group" : "na-adjective",

    "conjugations" : {

      "plain" : "意[い]地[じ]悪[わる]だ",
      "negative" : "意[い]地[じ]悪[わる]ではない",
      "polite" : "意[い]地[じ]悪[わる]です",
      "polite negative" : "意[い]地[じ]悪[わる]ではありません",
      "past" : "意[い]地[じ]悪[わる]だった",
      "past negative" : "意[い]地[じ]悪[わる]ではなかった",
      "polite past" : "意[い]地[じ]悪[わる]でした",
      "polite past negative" : "意[い]地[じ]悪[わる]ではありませんでした",
    },
  },
};

var transformations = {

  "plain" : {

    "negative": "affirmative",
    "past": "present",
    "polite": "plain",
    "te-form": "plain",
    "potential": "plain",
    "imperative": "plain",
    "causative": "plain",
    "passive": "plain",
    "progressive" : "non-progressive",
  },

  "negative": {

    "plain": "negative",
    "past negative": "present",
    "polite negative": "plain",
    "te-form negative": "plain",
    "potential negative": "plain",
    "imperative negative": "plain",
    "causative negative": "plain",
    "passive negative": "plain",
    "progressive negative": "non-progressive",
  },

  "past" : {

    "plain": "past",
    "past negative" : "affirmative",
    "polite past": "plain",
    "progressive past": "non-progressive",
  },

  "past negative" : {

    "negative": "past",
    "past": "negative",
    "polite past negative": "plain",
    "progressive past negative": "non-progressive",
  },

  "polite": {

    "plain": "polite",
    "polite past": "present",
    "polite negative": "affirmative",
    "polite progressive": "non-progressive",
  },

  "polite past": {

    "past": "polite",
    "polite": "past",
    "polite past negative": "affirmative",
    "polite progressive past": "non-progressive",
  },

  "polite negative": {

    "negative": "polite",
    "polite": "negative",
    "polite past negative": "present",
    "polite progressive negative": "non-progressive",
  },

  "polite past negative": {

    "past negative": "polite",
    "polite past": "negative",
    "polite negative": "past",
    "polite progressive past negative": "non-progressive",
  },

  "te-form" : {

    "plain" : "て",
    "te-form negative" : "affirmative",
  },

  "te-form negative" : {

    "te-form" : "negative",
    "negative" : "て",
  },

  "potential" : {

    "plain" : "potential",
    "potential negative" : "affirmative",
  },

  "potential negative" : {

    "potential" : "negative",
    "negative" : "potential",
  },

  "imperative" : {

    "plain" : "imperative",
    "imperative negative" : "affirmative",
  },

  "imperative negative" : {

    "imperative" : "negative",
    "negative" : "imperative",
  },

  "causative" : {

    "plain" : "causative",
    "causative negative" : "affirmative",
    "causative passive" : "active",
  },

  "causative negative" : {

    "causative" : "negative",
    "negative" : "causative",
    "causative passive negative" : "active",
  },

  "passive" : {

    "plain" : "passive",
    "passive negative" : "affirmative",
    "causative passive" : "non-causative",
  },

  "passive negative" : {

    "passive" : "negative",
    "negative" : "passive",
    "causative passive negative" : "non-causative"
  },

  "causative passive" : {

    "causative" : "passive",
    "passive" : "causative",
    "causative passive negative" : "affirmative",
  },

  "causative passive negative" : {

    "causative negative" : "passive",
    "passive negative" : "causative",
    "causative passive" : "negative",
  },

  "progressive" : {

    "plain": "progressive",
    "polite progressive": "plain",
    "progressive negative": "affirmative",
    "progressive past": "present",
  },

  "progressive negative" : {

    "progressive": "negative",
    "negative": "progressive",
    "progressive past negative": "present",
    "polite progressive negative": "plain",
  },

  "polite progressive" : {

    "progressive": "polite",
    "polite": "progressive",
    "polite progressive negative": "affirmative",
    "polite progressive past": "present",
  },

  "polite progressive negative" : {

    "polite progressive": "negative",
    "polite negative": "progressive",
    "progressive negative": "polite",
    "polite progressive past negative": "present",
  },

  "progressive past" : {

    "past": "progressive",
    "progressive": "past",
    "progressive past negative": "affirmative",
    "polite progressive past": "plain",
  },

  "progressive past negative" : {

    "past negative": "progressive",
    "progressive negative": "past",
    "progressive past": "negative",
    "polite progressive past negative": "plain",
  },

  "polite progressive past" : {

    "polite past": "progressive",
    "polite progressive" : "past",
    "progressive past": "polite",
    "polite progressive past negative": "affirmative",
  },

  "polite progressive past negative" : {

    "polite past negative": "progressive",
    "progressive past negative": "polite",
    "polite progressive past": "negative",
    "polite progressive negative": "past",
  },
};

var log;

Array.prototype.randomElement = function () {
  return this[Math.floor(Math.random() * this.length)]
}

// From: http://stackoverflow.com/a/2897510

new function($) {
    $.fn.getCursorPosition = function() {
        var input = this.get(0);
        if (!input) return; // No (input) element found
        if ('selectionStart' in input) {
            // Standard-compliant browsers
            return input.selectionStart;
        } else if (document.selection) {
            // IE
            input.fmcus();
            var sel = document.selection.createRange();
            var selLen = document.selection.createRange().text.length;
            sel.moveStart('character', -input.value.length);
            return sel.text.length - selLen;
        }
    }
}(jQuery);

// From: http://stackoverflow.com/questions/499126/jquery-set-cursor-position-in-text-area

new function($) {
  $.fn.setCursorPosition = function(pos) {
    if (this.setSelectionRange) {
      this.setSelectionRange(pos, pos);
    } else if (this.createTextRange) {
      var range = this.createTextRange();
      range.collapse(true);
      if(pos < 0) {
        pos = $(this).val().length + pos;
      }
      range.moveEnd('character', pos);
      range.moveStart('character', pos);
      range.select();
    }
  }
}(jQuery);

function resetLog() {
  log = { "history": [] };
}

function getVerbForms(entry) {

  function kanaForm(word) {
    return word.split(/.\[([^\]]*)\]/).join("");
  }
  
  function kanjiForm(word) {
    return word.split(/(.)\[[^\]]*\]/).join("");
  }

  var result = {
    "kanji": { },
    "hiragana": { },
    "furigana": { }
  };

  Object.keys(words[entry].conjugations).forEach(function (key) {
    result["kanji"][key] = kanjiForm(words[entry].conjugations[key]);
    result["hiragana"][key] = kanaForm(words[entry].conjugations[key]);
    result["furigana"][key] = words[entry].conjugations[key];
  });

  return result;
}

function wordWithFurigana(word) {

  var bits = word.split(/(.)\[([^\]]*)\]/);

  while (bits.length > 1) {
    bits[0] = bits[0] + "<span tooltip='" + bits[2] + "'>" + bits[1] + "</span>" + bits[3];
    bits.splice(1, 3);
  }

  return bits[0];
}

function processAnswerKey() {

  var el = $('#answer');

  var pos = el.getCursorPosition();
  var val = el.val();

  var last1 = val.slice(pos - 1, pos);
  var last2 = val.slice(pos - 2, pos);
  var last3 = val.slice(pos - 3, pos);

  var replace1 = {
    "a" : "あ", "i" : "い", "u" : "う", "e" : "え", "o" : "お"
  };

  var replace2 = {

    "ka" : "か", "ki" : "き", "ku" : "く", "ke" : "け", "ko" : "こ",
    "sa" : "さ", "si" : "し", "su" : "す", "se" : "せ", "so" : "そ",
    "ta" : "た", "ti" : "ち", "tu" : "つ", "te" : "て", "to" : "と",
    "na" : "な", "ni" : "に", "nu" : "ぬ", "ne" : "ね", "no" : "の",
    "ha" : "は", "hi" : "ひ", "hu" : "ふ", "he" : "へ", "ho" : "ほ",
    "ma" : "ま", "mi" : "み", "mu" : "む", "me" : "め", "mo" : "も",
    "ra" : "ら", "ri" : "り", "ru" : "る", "re" : "れ", "ro" : "ろ",
    "ga" : "が", "gi" : "ぎ", "gu" : "ぐ", "ge" : "げ", "go" : "ご",
    "za" : "ざ", "zi" : "じ", "zu" : "ず", "ze" : "ぜ", "zo" : "ぞ",
    "da" : "だ", "di" : "ぢ", "du" : "づ", "de" : "で", "do" : "ど",
    "ba" : "ば", "bi" : "び", "bu" : "ぶ", "be" : "べ", "bo" : "ぼ",
    "pa" : "ぱ", "pi" : "ぴ", "pu" : "ぷ", "pe" : "ぺ", "po" : "ぽ",

    "qa" : "くぁ", "qi" : "くぃ", "qu" : "く", "qe" : "くぇ", "qo" : "くぉ",
    "wa" : "わ", "wi" : "うぃ", "wu" : "う", "we" : "うぇ", "wo" : "を",
    "ya" : "や", "yi" : "い", "yu" : "ゆ", "ye" : "いぇ", "yo" : "よ",
    "fa" : "ふぁ", "fi" : "ふぃ", "fu" : "ふ", "fe" : "ふぇ", "fo" : "ふぉ",
    "ja" : "じゃ", "ji" : "じ", "ju" : "じゅ", "je" : "じぇ", "jo" : "じょ",
    "la" : "ぁ", "li" : "ぃ", "lu" : "ぅ", "le" : "ぇ", "lo" : "ぉ",
    "za" : "ざ", "zi" : "じ", "zu" : "ず", "ze" : "ぜ", "zo" : "ぞ",
    "xa" : "ぁ", "xi" : "ぃ", "xu" : "ぅ", "xe" : "ぇ", "xo" : "ぉ",
    "ca" : "か", "ci" : "し", "cu" : "く", "ce" : "せ", "co" : "こ",
    "va" : "ヴぁ", "vi" : "ヴぃ", "vu" : "ヴ", "ve" : "ヴぇ", "vo" : "ヴぉ",

    "lu" : "っ",

    "nn" : "ん", "n'" : "ん",

    "nb" : "んb", "nc" : "んc", "nd" : "んd", "nf" : "んf", "ng" : "んg",
    "nh" : "んh", "nj" : "んj", "nk" : "んk", "nl" : "んl", "nm" : "んm",
    "np" : "んp", "nq" : "んq", "nr" : "んr", "ns" : "んs", "nt" : "んt",
    "nv" : "んv", "nw" : "んw", "nx" : "んx", "nz" : "んz", 

    "aa" : "っa", "bb" : "っb", "cc" : "っc", "dd" : "っd", "ee" : "っe",
    "ff" : "っf", "gg" : "っg", "hh" : "っh", "ii" : "っi", "jj" : "っj",
    "kk" : "っk", "ll" : "っl", "mm" : "っm", "oo" : "っo", "pp" : "っp",
    "qq" : "っq", "rr" : "っr", "ss" : "っs", "tt" : "っt", "uu" : "っu",
    "vv" : "っv", "ww" : "っw", "xx" : "っx", "yy" : "っy", "zz" : "っz",
  };

  var replace3 = {

    "kya" : "きゃ", "kyi" : "きぃ", "kyu" : "きゅ", "kye" : "きぇ", "kyo" : "きょ",
    "sya" : "しゃ", "syi" : "しぃ", "syu" : "しゅ", "sye" : "しぇ", "syo" : "しょ",
    "tya" : "ちゃ", "tyi" : "ちぃ", "tyu" : "ちゅ", "tye" : "ちぇ", "tyo" : "ちょ",
    "nya" : "にゃ", "nyi" : "にぃ", "nyu" : "にゅ", "nye" : "にぇ", "nyo" : "にょ",
    "hya" : "ひゃ", "hyi" : "ひぃ", "hyu" : "ひゅ", "hye" : "ひぇ", "hyo" : "ひょ",
    "mya" : "みゃ", "myi" : "みぃ", "myu" : "みゅ", "mye" : "みぇ", "myo" : "みょ",
    "rya" : "りゃ", "ryi" : "りぃ", "ryu" : "りゅ", "rye" : "りぇ", "ryo" : "りょ",
    "gya" : "ぎゃ", "gyi" : "ぎぃ", "gyu" : "ぎゅ", "gye" : "ぎぇ", "gyo" : "ぎょ",
    "zya" : "じゃ", "zyi" : "じぃ", "zyu" : "じゅ", "zye" : "じぇ", "zyo" : "じょ",
    "dya" : "ぢゃ", "dyi" : "ぢぃ", "dyu" : "ぢゅ", "dye" : "ぢぇ", "dyo" : "ぢょ",
    "bya" : "びゃ", "byi" : "びぃ", "byu" : "びゅ", "bye" : "びぇ", "byo" : "びょ",
    "pya" : "ぴゃ", "pyi" : "ぴぃ", "pyu" : "ぴゅ", "pye" : "ぴぇ", "pyo" : "ぴょ",

    "shi" : "し",
    "tsu" : "つ",
  };

  if (replace3[last3]) {
    val = val.slice(0, pos - 3) + replace3[last3] + val.slice(pos, -1);
    el.val(val);
    el.setCursorPosition(pos - 3 + replace3[last3].length);
  } else if (replace2[last2]) {
    val = val.slice(0, pos - 2) + replace2[last2] + val.slice(pos, -1);
    el.val(val);
    el.setCursorPosition(pos - 2 + replace2[last2].length);
  } else if (replace1[last1]) {
    val = val.slice(0, pos - 1) + replace1[last1] + val.slice(pos, -1);
    el.val(val);
    el.setCursorPosition(pos - 1 + replace1[last1].length);
  }
}

function generateQuestion() {
  
  var entry;
  var to_form;
  var from_form;
  var forms;

  var count = 0;

  while (true) {

    if (count++ == 10000) {
      showSplash();
      return;
    }
     
    entry = Object.keys(words).randomElement();
    to_form = Object.keys(transformations).randomElement();
    from_form = Object.keys(transformations[to_form]).randomElement();

    forms = getVerbForms(entry);

    var valid = true;
    var types = from_form.split(" ").concat(to_form.split(" "));

    types.forEach(function (type) {
      if (type != 'plain') {
        if ($('#' + type).is(':checked') == false) {
          valid = false;
        }
      }
    });

    if ($('#' + words[entry].group).is(':checked') == false) {
      valid = false;
    }

    if (!forms["furigana"][from_form])
      valid = false;

    if (!forms["furigana"][to_form])
      valid = false;

    if (valid) {
      break;
    }
  }

  var word = forms["word"];
  var kanjiForms = forms["kanji"];
  var kanaForms = forms["hiragana"];
  var furiganaForms = forms["furigana"];

  var question = "What is the " + transformations[to_form][from_form] + " form of " + wordWithFurigana(furiganaForms[from_form]) + "?";
  var answer = kanjiForms[to_form];
  var answer2 = kanaForms[to_form];

  $('#question').html(question);

  window.question = question;
  window.word = word;
  window.answer = kanjiForms[to_form];
  window.answerWithFurigana = wordWithFurigana(furiganaForms[to_form]);
  window.answer2 = answer2;

  $('#next').prop('disabled', true);
  $('#response').html("");
  $('#message').html("");

  $('#proceed').hide();
  $('#input').show();
  $('#answer').focus();

  $('#answer').on('input', processAnswerKey);

  if (log.start == undefined) {
    log.start = Date.now();
  }
}

function processAnswer() {

  var response = $('#answer').val().trim();

  if (response == "")
    return;

  var correct = ((response == window.answer) || (response == window.answer2));
  var klass = correct ? "correct" : "incorrect";

  log.history.push({
    "question" : window.question,
    "response" : response,
    "answer"   : window.answerWithFurigana,
    "kana"     : window.answer2,
    "correct"  : correct
  });

  $('#answer').val("");
  $('#response').prop('class', klass).text(response);
  $('#next').prop('disabled', false);
  
  if ((response == window.answer) || (response == window.answer2)) {
    $('#message').html("");
  } else {
    $('#message').html("<div>The correct answer is " + window.answerWithFurigana + "</div>");
  }

  $('#input').hide();
  $('#proceed').show();
  $('#proceed button').focus();

  if (log.end == undefined) {
    log.end = Date.now();
  }

  updateHistoryView(log);
}

function updateHistoryView(log) {

  var review = $('<table>');

  var total = 0;
  var correct = 0;

  var header_tr = $('<tr>');

  header_tr.append($('<th>Question</th>')); 
  header_tr.append($('<th>Answer</th>')); 
  header_tr.append($('<th>Response</th>')); 

  review.append(header_tr);

  log.history.forEach(function (entry) {

    total++;

    if (entry.correct) {
      correct++;
    }

    var tr = $('<tr>');

    var td1 = $('<td>'); 
    var td2 = $('<td>'); 
    var td3 = $('<td>'); 

    td1.html(entry.question);
    td2.html(entry.answer);
    td3.text(entry.response);

    tr.append(td1);
    tr.append(td2);
    tr.append(td3);

    if (entry.correct) {
      td3.append("<span class='answer-correct'> ○</span>");
    } else {
      td3.append("<span class='answer-wrong'> ×</span>");
    }
    review.append(tr);
  });

  $('#history').empty().append(review);

  $('#history').append("<p>" + correct + " of " + total + " correct.</p>");
  $('#history').append("<p>" + ((log.end - log.start) / 1000.0) + " seconds.</p>");
}

function proceed() {
  if (log.history.length == $('#numQuestions').val()) {
    endQuiz();
  } else {
    generateQuestion();
  }
}

function showSplash() {
  $('#splash').show();
  $('#quizSection').hide();
  $('#scoreSection').hide();

  $('#go').focus();
}

function startQuiz() {
  $('#splash').hide();
  $('#quizSection').show();
  $('#scoreSection').hide();

  resetLog();
  generateQuestion();
}

function endQuiz() {
  $('#splash').hide();
  $('#quizSection').hide();
  $('#scoreSection').show();

  $('#backToStart').focus();
}

$('window').ready(function() {

  $('#go').click(startQuiz);
  $('#backToStart').click(showSplash);

  showSplash();
});