Verbseoul.
하다 verb

후회하다 conjugation (huhoehada, to regret)

To say to regret politely in the present tense, use 후회해요 (hoo-hwae-hae-yoh) · huhoehaeyo. Below is the full conjugation of 후회하다 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
후회해
hoo-hwae-hae
huhoehae
후회해요
hoo-hwae-hae-yoh
huhoehaeyo
후회합니다
hoo-hwae-hahm-nee-dah
huhoehamnida
Past
후회했어
hoo-hwae-hae-ssuh
huhoehaesseo
후회했어요
hoo-hwae-hae-ssuh-yoh
huhoehaesseoyo
후회했습니다
hoo-hwae-hae-sseum-nee-dah
huhoehaesseumnida
Future
후회할 거야
hoo-hwae-hahl guh-yah
huhoehal geoya
후회할 거예요
hoo-hwae-hahl guh-yae-yoh
huhoehal geoyeyo
후회할 겁니다
hoo-hwae-hahl guhm-nee-dah
huhoehal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
후회하세요
hoo-hwae-hah-sae-yoh
huhoehaseyo
Suggestion / Let's Polite (요)
후회해요
hoo-hwae-hae-yoh
huhoehaeyo
Question Polite (요)
후회해요?
hoo-hwae-hae-yoh-?
huhoehaeyo?
Connective "and" — (고)
후회하고
hoo-hwae-hah-goh
huhoehago
Conditional "if" — (면)
후회하면
hoo-hwae-hah-myuhn
huhoehamyeon
Progressive (고 있어요)
후회하고 있어요
hoo-hwae-hah-goh ee-ssuh-yoh
huhoehago isseoyo
Want to (고 싶어요)
후회하고 싶어요
hoo-hwae-hah-goh shee-puh-yoh
huhoehago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
후회할 수 있어요
hoo-hwae-hahl soo ee-ssuh-yoh
huhoehal su isseoyo
Because / So (아/어서)
후회해서
hoo-hwae-hae-suh
huhoehaeseo
Noun form — (기)
후회하기
hoo-hwae-hah-gee
huhoehagi
Noun form — (음)
후회함
hoo-hwae-hahm
huhoeham