V/A + -지 않으면 안 되다 – Must / Have No Choice But to (Double Negative)

Conjugation & Pattern

• Verb / Adjective stem (V/A) + -지 않으면 안 되다 (equivalent to V/A + -아/어야 하다)

Detailed Usage

Uses double negation ('-지 않다' + '안 되다') to strongly emphasize obligation or necessity ('if one does not do X, it will not do' = 'one must do X').

Example Sentences

1. 1

   외국어 발음은 자꾸 연습하지 않으면 안 됩니다.

   Oegugeo bareumeun jakku yeonseuphaji aneumyeon an doemnida.

   Foreign language pronunciation must be practiced repeatedly.

2. 2

   교차로에서는 속도를 줄이지 않으면 안 됩니다.

   Gyocharoeseoneun sokdoreul juriji aneumyeon an doemnida.

   You must reduce your speed at an intersection.

3. 3

   단체 생활을 하려면 규칙을 지키지 않으면 안 돼요.

   Danche saenghwareul haryeomyeon gyuchigeul jikiji aneumyeon an dwaeyo.

   To live in a group, you must follow the rules.