N31615/1669

けない

expressionい adjectiveadjective (generic)

Meanings

  • bad, wrong, naughty
  • must not (do, be), should not, ought not to
  • useless, no good, bad
  • hopeless, beyond hope
  • unfortunate, a shame, a pity
  • unable to drink (alcohol)
  • so as not to ..., so that ... (won't), in case ..., for fear that ..., lest ...

Learn in context

Example sentences

うそをついてはいけない

You must not tell lies.

ここでタバコをってはいけませんよ。

You must not smoke here.

彼女かのじょいているのをて、かわいそうでいけなかった

Seeing her cry, I felt so bad I couldn't stand it.

風邪かぜかないように、外出がいしゅつするときはあたたかくしないといけないよ。

You should keep yourself warm when going out so you don't catch a cold.

試験しけん遅刻ちこくしてはいけないから、はやめにいえた。

I left home early so as not to be late for the exam.