~なくてはいけない

〜nakute wa ikenai

JLPT N4 Neutral Chapter 36: Must and may, 3 of 12

Formation

Verb-negative form + なくてはいけない

Expresses the necessity or obligation; 'must', 'have to'.

When to use

Slightly less stiff than なければならない, still fine in most polite contexts.

Explanation

The ~なくてはいけない grammar point is used to express the necessity or obligation to do something. It can be translated as 'must' or 'have to' in English. The formation requires the negative form of a verb and is followed by いけない (cannot go/progress). It indicates that if something is not done, it will be a problem or inappropriate.

Example sentences

Other forms

Obligation (Must / Have to)

Corpus examples (60)

Showing 25 of 60 corpus examples.