Possibility and obligation

でも

Used to list one or more possible options.

[!info] Example ジュース==でも==お茶==でも==飲もうか。 Shall we drink something like a juice or tea?

Express a possibility, like "perhaps". By order of politeness: かもしれません > かもしれない > かも.

[!info] Example 今日も来る==かもしれない==。 He might come today too.

Means "whether or not".

[!info] Example 行きたい==かどうか=={分|わ}からない。 I'm not sure if I want to go or not.

い-Adj

な-Adj + な

N + の

+ はずだ・はずがない

はずだ means "it must/should be", while はずがない means "it cannot be".

[!info] Examples {彼|かれ}は今日来る==はずだ==。 He should be coming today.

そんあ==はずがありません==。 This cannot be true.

Means certainly, definitely. Expresses a wish.

[!info] Example この{映画|えい|が}==ぜひ==見ます。 I'll watch this movie for sure.

Means surely, almost certainly. Express an expectation.

[!info] Example ==きっと==雨でしょう。 It will surely rain.

{必|かなら}ず means certainly, definitely. Expresses an obligation.

[!info] Example 明日の{授業|じゅ|ぎょう}==必ず==来てください。 Please be sure to attend tomorrow's class.

Means "can", "able to". It has the same meaning as the potential form (see Conjugation Basics). 食べる => 食べられる = 食べることができる.

[!info] Example {英語|えいご}を{話|はな}す==ことが出来ない==。 I cannot speak English.