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CourseGrammarWords
  1. Home
  2. ›Grammar
  3. ›A1
  4. ›Permission/Prohibition
動詞A1

Permission/Prohibition

てもいい (may/is OK to) and てはいけない (must not)

Learning Goal

Can ask for and give permission, and express prohibition

Exam Skills:JLPT N5 Grammar

Look at these examples. Can you spot the grammar pattern?

ここに座ってもいいですか。

May I sit here?

教室で食べてはいけません。

You must not eat in the classroom.

Pay attention to the highlighted parts. What do they have in common?

てもいい・てはいけない — Permission & Prohibition

Permission: て form + もいいです = 'may/it's OK to'.

Prohibition: て form + はいけません = 'must not'.

PatternExampleMeaning
〜てもいいですか写真を撮ってもいいですか。May I take a photo?
〜てもいいですはい、撮ってもいいです。Yes, you may.
〜てはいけませんここで食べてはいけません。You must not eat here.

Apply this grammar in A1 course exercises

Practice Exercises

See detailed notes in content.

ここに座ってもいいですか。

May I sit here?

座る(すわる, sit) → 座って(て form) + もいいですか(is it OK?)

教室で食べてはいけません。

You must not eat in the classroom.

食べる → 食べて + はいけません(must not)

Practice in course

Apply this grammar in A1 course exercises

A1 Course
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Related grammar topics

  • て形
  • 動詞の種類
  • ます形
  • ている
  • たい(願望)
  • ないでください
  • ことができる
  • つもり