Pattern: -(아/어)야 하다
-(아/어)야 하다 (-(a, (a, eo)yaha-da, eo)yahada)
-(아/어)야 하다 expresses obligation or necessity in Korean. It's common in daily and formal speech.
When and how native speakers actually use it.
Expression of obligation or necessity
When to use
Expressing obligation, Giving advice, Explaining rules
The nuance
Attach -(아/어)야 하다 to the verb stem to express 'must' or 'have to'. Past tense is -(아/어)야 했다, and negation is -(아/어)야 하지 않다 or -(아/어)야 안 되다.
내일까지 숙제를 해야 해.
nae-il-kka-ji suk-je-reul hae-ya hae., nae il kka ji suk je reul hae ya hae.
Correctly attaches '-야 하다' to '하다' to express obligation.
지금 가야 해요.
ji-geum ga-ya hae-yo., ji geum ga ya hae yo.
Correct use of '-야 하다' with verb stem '가' to express necessity.
너는 공부해야 해요.
neo-neun gong-bu-hae-ya hae-yo., neo neun gong bu hae ya hae yo.
Correct form attaching '-야 하다' to stem '공부하-'.
밥 먹어야 하지 않아.
bap meok-eo-ya ha-ji an-a., bap meok eo ya ha ji an a.
Negation form '-아/어야 하지 않다' is used correctly.
내일 일찍 일어나야 했다.
nae-il il-jjik il-eo-na-ya haess-da., nae il il jjik il eo na ya haess da.
Past tense with future time expression is semantically incorrect.
운동해야 해요.
un-dong-hae-ya hae-yo., un dong hae ya hae yo.
Correct obligation expression with '-야 하다'.
영화를 봐야 하다.
yeong-hwa-reul bwa-ya ha-da., yeong hwa reul bwa ya ha da.
Correct use of '-야 하다' with verb stem '봐-'.
책을 읽어야 한다.
chaek-eul ik-eo-ya han-da., chaek eul ik eo ya han da.
Correct obligation expression attaching '-어야 하다'.
Which sentence correctly uses -(아/어)야 하다?
How do you attach -(아/어)야 하다 to the verb ‘먹다’?
Which is the correct negative form?
