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GrammarJLPT N4

must not

Expression

Definitions

1. must not

This colloquial grammar pattern expresses prohibition, meaning "must not" or "should not" do something. It is a contracted, casual form used in everyday speech, and it follows the te-form of a verb to tell someone that a certain action is not allowed or is a bad idea.

Grammar

Grammar lesson content not found for this point.

Example sentences

Sentence 1

I can't forget the office keys at home.

Sentence 2

You must not put off reporting things.

Sentence 3

I can't cry right now — calm down.

Sentence 4

No matter how busy you are, you can't forget to say hello.

Sentence 5

How come I'm the only one who can't take a day off?