はいけない

Meaning & usage

Cannot do something; must not do something; don’t do something; should not do something | A phrase which indicates prohibition.

Example sentences 3

1. この部屋に入ってはいけない・いけません。

   You must not enter this room.

2. 教室でものを食べてはいけません。

   You must not eat (food) in the classroom.

3. 花子はまだ酒を飲んではいけない。

   Hanako must/can not drink alcohol yet.