てもいい and てはいけない
These patterns express permission and prohibition in a very practical everyday way.
Examples
JapaneseTranslation
ここで写真を撮ってもいいです。Koko de shashin o totte mo ii desu.
You may take photos here.
この部屋に入ってはいけません。Kono heya ni haitte wa ikemasen.
You must not enter this room.
先に帰ってもいいよ。Saki ni kaette mo ii yo.
You may go home first.
Pattern
te-form + もいい / てはいけない
How it works
These patterns express permission and prohibition in a very practical everyday way. This pattern typically appears as te-form + もいい / てはいけない and becomes easier when you meet it again in short, readable examples.
What to notice
- てもいい gives permission.
- てはいけない marks prohibition or social unacceptability.
Why it matters
Express ability, permission, and social expectations more clearly.
Use in context
This page is highly reusable in travel, classroom, service, and workplace situations.