Dictionary

Dictionary / Grammar /

JLPT N4 Neutral

〜nakute wa ikenai

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

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

Formation

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

  • I have to do my homework.

    Shukudai o shinakute wa ikenai.

  • I must send this letter by tomorrow.

    Kono tegami o ashita made ni dasanakute wa ikenai.

  • We must not waste food.

    Tabemono o muda ni shinakute wa ikenai.

  • I want to leave early, but I have to wait until the class finishes.

    Soutai shitai ga, jugyou ga owaru made matanakute wa ikenai.

Obligation (Must / Have to)