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하다 verb

정하다 conjugation (jeonghada, to designate, to specify, to decide, to determine)

To say to designate, to specify, to decide, to determine politely in the present tense, use 정해요 (chuhng-hae-yoh) · jeonghaeyo. Below is the full conjugation of 정하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
정해
chuhng-hae
jeonghae
정해요
chuhng-hae-yoh
jeonghaeyo
정합니다
chuhng-hahm-nee-dah
jeonghamnida
Past
정했어
chuhng-hae-ssuh
jeonghaesseo
정했어요
chuhng-hae-ssuh-yoh
jeonghaesseoyo
정했습니다
chuhng-hae-sseum-nee-dah
jeonghaesseumnida
Future
정할 거야
chuhng-hahl guh-yah
jeonghal geoya
정할 거예요
chuhng-hahl guh-yae-yoh
jeonghal geoyeyo
정할 겁니다
chuhng-hahl guhm-nee-dah
jeonghal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
정하세요
chuhng-hah-sae-yoh
jeonghaseyo
Suggestion / Let's Polite (요)
정해요
chuhng-hae-yoh
jeonghaeyo
Question Polite (요)
정해요?
chuhng-hae-yoh-?
jeonghaeyo?
Connective "and" — (고)
정하고
chuhng-hah-goh
jeonghago
Conditional "if" — (면)
정하면
chuhng-hah-myuhn
jeonghamyeon
Progressive (고 있어요)
정하고 있어요
chuhng-hah-goh ee-ssuh-yoh
jeonghago isseoyo
Want to (고 싶어요)
정하고 싶어요
chuhng-hah-goh shee-puh-yoh
jeonghago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
정할 수 있어요
chuhng-hahl soo ee-ssuh-yoh
jeonghal su isseoyo
Because / So (아/어서)
정해서
chuhng-hae-suh
jeonghaeseo
Noun form — (기)
정하기
chuhng-hah-gee
jeonghagi
Noun form — (음)
정함
chuhng-hahm
jeongham