う

auxiliary verb

indicates speculation; probably; I wonder

Attaches to the imperfective form (未然形) of verbs and adjectives to express conjecture or uncertainty about a future or present state. Often used in plain-style sentences.

• 明日あしたは雨あめが降ふろう。

  It will probably rain tomorrow.

• 彼かれはもう帰かえろう。

  He has probably already gone home.

auxiliary verb

indicates will; intention; let's

Expresses the speaker's volition or intention. When used with the volitional form of a verb, it can also function as a cohortative ('let's do something').

• 私わたしがやろう。

  I'll do it.

• 一いっ緒しょに映えい画がを見みよう。

  Let's watch a movie together.

auxiliary verb

indicates invitation; shall we?; why don't we?

Used to gently invite or suggest an action to the listener. Often softened with か (e.g., 行こうか).

• そろそろ出でかけようか。

  Shall we head out soon?

• お茶ちゃでも飲のもう。

  Why don't we have some tea?