Verbseoul.
하다 verb

다짐하다 conjugation (dajimhada, to promise, to resolve, to make a resolution)

To say to promise, to resolve, to make a resolution politely in the present tense, use 다짐해요 (dah-cheem-hae-yoh) · dajimhaeyo. Below is the full conjugation of 다짐하다 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
다짐해
dah-cheem-hae
dajimhae
다짐해요
dah-cheem-hae-yoh
dajimhaeyo
다짐합니다
dah-cheem-hahm-nee-dah
dajimhamnida
Past
다짐했어
dah-cheem-hae-ssuh
dajimhaesseo
다짐했어요
dah-cheem-hae-ssuh-yoh
dajimhaesseoyo
다짐했습니다
dah-cheem-hae-sseum-nee-dah
dajimhaesseumnida
Future
다짐할 거야
dah-cheem-hahl guh-yah
dajimhal geoya
다짐할 거예요
dah-cheem-hahl guh-yae-yoh
dajimhal geoyeyo
다짐할 겁니다
dah-cheem-hahl guhm-nee-dah
dajimhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
다짐하세요
dah-cheem-hah-sae-yoh
dajimhaseyo
Suggestion / Let's Polite (요)
다짐해요
dah-cheem-hae-yoh
dajimhaeyo
Question Polite (요)
다짐해요?
dah-cheem-hae-yoh-?
dajimhaeyo?
Connective "and" — (고)
다짐하고
dah-cheem-hah-goh
dajimhago
Conditional "if" — (면)
다짐하면
dah-cheem-hah-myuhn
dajimhamyeon
Progressive (고 있어요)
다짐하고 있어요
dah-cheem-hah-goh ee-ssuh-yoh
dajimhago isseoyo
Want to (고 싶어요)
다짐하고 싶어요
dah-cheem-hah-goh shee-puh-yoh
dajimhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
다짐할 수 있어요
dah-cheem-hahl soo ee-ssuh-yoh
dajimhal su isseoyo
Because / So (아/어서)
다짐해서
dah-cheem-hae-suh
dajimhaeseo
Noun form — (기)
다짐하기
dah-cheem-hah-gee
dajimhagi
Noun form — (음)
다짐함
dah-cheem-hahm
dajimham