~ないといけない

〜nai to ikenai

JLPT N4 Neutral Chapter 36: Must and may, 1 of 12

Formation

Verb-negative + といけない

Express a necessity; 'must', 'have to', 'need to'.

When to use

Conversational but not as casual as なきゃ/なくちゃ; common in everyday polite speech.

Explanation

The ~ないといけない grammar point is used to express a sense of necessity or obligation, similar to 'must', 'have to', or 'need to' in English. This structure is formed by using the negative form of the verb (ending in ない) followed by といけない.

Example sentences

Obligation (Must / Have to)

Corpus examples (60)

Showing 25 of 60 corpus examples.