must

動詞A1/məst/

To do as a requirement; indicates that the sentence subject is required as an imperative or directive to execute the sentence predicate, with failure to do so resulting in a failure or negative consequence.助動詞, defective, 法助動詞, 過去分詞なし, no present participle
To do with certainty; indicates that the speaker is certain that the subject will have executed the predicate.助動詞, defective, 法助動詞, 過去分詞なし, no present participle
Used to indicate that something is very likely, probable, or certain to be true.助動詞, defective, 法助動詞, 過去分詞なし, no present participle
To make musty.助動詞, defective, 法助動詞, 他動詞
To become musty.助動詞, defective, 自動詞, 法助動詞

変化形

例文9522件

We must learn to live together as brothers, or we will perish together as fools.

私たちは兄弟として共に生きることを知らなければならない。さもなくば、愚か者として共に滅びるであろう。

Seeing that you're not surprised, I think you must have known.

驚かない所をみると知ってたのね。