Pocket Korean

Korean grammar patterns › Level 3

-지 않으면 안 되다

must, have to (strong: it won't do if not)

Level 3 · TOPIK II · intermediate

How to use it

A double negative ('if not…, it's not OK') that expresses strong obligation or necessity.

Forming it

가다→ 가지 않으면 안 돼요
먹다→ 먹지 않으면 안 돼요
하다→ 하지 않으면 안 돼요

Examples

Compared with similar patterns

-아/어야 하다/되다 is the everyday 'must'; -지 않으면 안 되다 is more emphatic. -(으)ㄹ 수밖에 없다 means there is no alternative.

Related patterns