약속해
yahg-ssoh-kae
yakssokae
약속하다
To say to promise politely in the present tense, use 약속해요 (yahg-ssoh-kae-yoh) · yakssokaeyo. Below is the full conjugation of 약속하다 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
| Tense | Casual (반말) | Polite (요) | Formal (합니다) |
|---|---|---|---|
| Present | 약속해요 yahg-ssoh-kae-yoh yakssokaeyo | 약속합니다 yahg-ssoh-kahm-nee-dah yakssokamnida | |
| Past | 약속했어 yahg-ssoh-kae-ssuh yakssokaesseo | 약속했어요 yahg-ssoh-kae-ssuh-yoh yakssokaesseoyo | 약속했습니다 yahg-ssoh-kae-sseum-nee-dah yakssokaesseumnida |
| Future | 약속할 거야 yahg-ssoh-kahl guh-yah yakssokal geoya | 약속할 거예요 yahg-ssoh-kahl guh-yae-yoh yakssokal geoyeyo | 약속할 겁니다 yahg-ssoh-kahl guhm-nee-dah yakssokal geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
약속하세요
yahg-ssoh-kah-sae-yoh
yakssokaseyo
Suggestion / Let's Polite (요)
약속해요
yahg-ssoh-kae-yoh
yakssokaeyo
Question Polite (요)
약속해요?
yahg-ssoh-kae-yoh-?
yakssokaeyo?
Connective "and" — (고)
약속하고
yahg-ssoh-kah-goh
yakssokago
Conditional "if" — (면)
약속하면
yahg-ssoh-kah-myuhn
yakssokamyeon
Progressive (고 있어요)
약속하고 있어요
yahg-ssoh-kah-goh ee-ssuh-yoh
yakssokago isseoyo
Want to (고 싶어요)
약속하고 싶어요
yahg-ssoh-kah-goh shee-puh-yoh
yakssokago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
약속할 수 있어요
yahg-ssoh-kahl soo ee-ssuh-yoh
yakssokal su isseoyo
Because / So (아/어서)
약속해서
yahg-ssoh-kae-suh
yakssokaeseo
Noun form — (기)
약속하기
yahg-ssoh-kah-gee
yakssokagi
Noun form — (음)
약속함
yahg-ssoh-kahm
yakssokam