Update Obligation.md

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Théo Marchal 2024-06-07 17:10:00 +02:00
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@ -26,17 +26,28 @@ Can be used as わけはいかない or わけにはいきません.
> {本当|ほんとう}に飲み会に行く==わけにはいかない==よ。 > {本当|ほんとう}に飲み会に行く==わけにはいかない==よ。
> There's really no way I can go to the afterwork. > There's really no way I can go to the afterwork.
## ずにはいられない ## なくてもい
Means "can't help but do something". Means "don't have to". Used with a verb in the negative form (ない), appending なくてもいい.
Made with a verb in the negative form (ない) without the ない ending and adding ずにはいられない. Can also be used as なくていい.
> [!info] Example > [!info] Example
> {悲|かな}しいのでアイスクリーム食べ==ずには入れれない==。 > 今日はレストランで{手伝|て|つ}わ==なくてもいい==。
> I'm sad so I can't help but eat ice cream. > You don't have to help out at the restaurant today (it's okay if you don't help at the restaurant today).
## てからでないと
Means "must first do". The second part becomes possible after the first one.
Used with a verb in て form, with からでないと or からでないければ.
> [!info] Example
> {払|はら}==ってからでないと=={入|はい}るができること。
> You can enter only after paying.
## こと as "should do" ## こと as "should do"
### こと
<div class="usage"> <div class="usage">
<div class="left"> <div class="left">
<p><span class="box">V (dictionary)</span></p> <p><span class="box">V (dictionary)</span></p>
@ -51,7 +62,16 @@ Means "should do". Mostly used to set rules.
> ここに{車|くるま}を{止|と}めない==こと==です。 > ここに{車|くるま}を{止|と}めない==こと==です。
> Don't park your car here. > Don't park your car here.
## ことはない ### ことになっている
This form is used to express rules or expectations.
Used with dictionary (る) and negative (ない) form of verbs.
> [!info] Examples
> {指|ゆび}で食べない==ことになっている==。
> You're not supposed to eat with your fingers.
### ことはない
This has two meanings: This has two meanings:
* it is not necessary to * it is not necessary to
@ -63,57 +83,19 @@ Used with a verb in the dictionary form.
> {走|はし}る==ことはない==。まだ{時間|じかん}がある。 > {走|はし}る==ことはない==。まだ{時間|じかん}がある。
> There's no need to run. There's still time. > There's no need to run. There's still time.
## ことになっている ## 必ず
This form is used to express rules or expectations. {必|かなら}ず means certainly, definitely. Expresses an obligation.
Used with dictionary (る) and negative (ない) form of verbs.
> [!info] Examples
> {指|ゆび}で食べない==ことになっている==。
> You're not supposed to eat with your fingers.
## Must
### なくちゃ・なきゃ
Only used on casual spoken conversations.
This form is used with the negative form of a verb (ない), and adding なくちゃ and optionally one of the following ending: だめ, いけない, いけません, ならない, なりません.
なくちゃ is the shortened form of なくては.
なきゃ is the shortened form of なければ.
> [!info] Example > [!info] Example
> {歯|は}を{磨|みが}か==なくちゃいけない== > 明日の{授業|じゅ|ぎょう}==必ず==来てください。
> I must brush my teeth. > Please be sure to attend tomorrow's class.
### なくては「いけない・ならない」 ## べき
Also formed with the negative form of a verb.
> [!info] Example
> 今{遅|おそ}いね。{寝|ね}に行か==なくてはいけない==。
> It's late now. I have to go to sleep.
### なければ「いけない・ならない」
Also formed with the negative form of a verb.
> [!info] Example
> {事務所|じむしょ}では{静|しず}かにし==なければならない==。
> You have to be quiet in the office.
### ないといけない
Also formed with the negative form of a verb.
In casual contexts, can be shortened as ないと.
> [!info] Example
> 今日は{勉強|べんきょう}し==ないといけない==。
> I have to study today.
### べきだ ### べきだ
Means "should do", "must do". Means "should do", "must do". Compared to the [[Obligation - なければ・ないと]] forms and 必ず, it has a nuance of being less universally logical. It is defined by the speaker's own logic.
Used with verbs. Used with verbs.
する can be used as するべき or すべき. する can be used as するべき or すべき.
@ -121,64 +103,6 @@ Used with verbs.
> {来週|らいしゅう}{試験|しけん}があるので{勉強|べんきょう}す==べきです==。 > {来週|らいしゅう}{試験|しけん}があるので{勉強|べんきょう}す==べきです==。
> There is an exam next week, so I should study. > There is an exam next week, so I should study.
## てからでないと
Means "must first do". The second part becomes possible after the first one.
Used with a verb in て form, with からでないと or からでないければ.
> [!info] Example
> {払|はら}==ってからでないと=={入|はい}るができること。
> You can enter only after paying.
🛠🛠🛠🛠
Todo: new notions!
### Comparing いけない and ならない
* ==いけない== is the standardly used form. It implies a subjective view, that it would be better to do something, to avoid negative consequences (eg: brushing one's teeth, eating well, etc).
* ==ならない== is usually more formal or in written form. It implies a is more objective view, something that has to be done because there's no other way (eg: respecting the law, paying taxes, etc).
### Comparing なくては, なければ and ないと
なくては and なければ are generally interchangeable in speech. However:
* ==なくては== is generally used when there is _no penalty_ for not complying.
* ==なければ== is generally used when there _is a penalty_ for not complying.
* ==ないと== is lighter and does not imply that there can or cannot be penalty. Its construction is based on the [[Conditional#と]] particle, and should be based on knowledge or experience.
## Must not
#### 「ちゃ・じゃ」「だめ・いけない・いけません」
Only used on casual spoken conversations. いけません is a bit more formal.
This form is used with a V-て, depending on the ending:
* with て, ちゃ is used.
* with で, じゃ is used.
> [!info] Examples
> その{花|はな}を食べ==ちゃだめ==。
> Don't eat those flowers.
>
> {花瓶|か|びん}の水を{飲|の}ん==じゃいけない==。
> Don't drink the water of the flower vase.
### てはいけない
Used in a more formal or written manner. Used with a V-て.
> [!info] Example
> {鉄道|てつ|どう}に{歩|ある}い==てはいけません==。
> Do not walk on the railroad.
### なくてもいい
Means "don't have to". Used with a verb in the negative form (ない), appending なくてもいい.
Can also be used as なくていい.
> [!info] Example
> 今日はレストランで{手伝|て|つ}わ==なくてもいい==。
> You don't have to help out at the restaurant today (it's okay if you don't help at the restaurant today).
### べきではない・べきじゃない ### べきではない・べきじゃない
The contrary of べきだ is べきではない・べきじゃない. The contrary of べきだ is べきではない・べきじゃない.
@ -187,45 +111,23 @@ The contrary of べきだ is べきではない・べきじゃない.
> {泥|どろ}を食べる==べきではない==。 > {泥|どろ}を食べる==べきではない==。
> You should not eat mud. > You should not eat mud.
## はずだ・はずがない
## ても構わない
<div class="usage"> <div class="usage">
<div class="left"> <div class="left">
<p><span class="box">V (て)</span></p> <p><span class="box">V</span></p>
<p><span class="box">い-Adj <strike></strike> くて</span></p> <p><span class="box">い-Adj</span></p>
<p><span class="box">な-Adj + </span></p> <p><span class="box">な-Adj + </span></p>
<p><span class="box">N + </span></p> <p><span class="box">N + </span></p>
</div> </div>
<p class="right">+ もかまわない・もかまいません</p> <p class="right">+ はずだ ・ はずがない</p>
</div> </div>
Means "it doesn't matter if", "I don't mind". はずだ means "it must/should be", while はずがない means "it cannot be". Has a nuance of being sure that it is something possible (or impossible).
> [!info] Example > [!info] Examples
> ここで{座|すわ}==っても構いません==か > {彼|かれ}は今日来る==はずだ==
> Would it be okay if I sit here? > He should be coming today.
> >
> ==かまわない==よ。 > そんあ==はずがありません==。
> I don't mind. > This cannot be true.
# TODO
## ないと
must do; unless/if you don't ~
https://jlptsensei.com/learn-japanese-grammar/%e3%81%aa%e3%81%84%e3%81%a8-naito-meaning/
https://bunpro.jp/grammar_points/%E3%81%AA%E3%81%84%E3%81%A8