Verbseoul.
하다 verb

환불하다 conjugation (hwanbulhada, to refund)

To say to refund politely in the present tense, use 환불해요 (hwahn-bool-hae-yoh) · hwanbulhaeyo. Below is the full conjugation of 환불하다 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
환불해
hwahn-bool-hae
hwanbulhae
환불해요
hwahn-bool-hae-yoh
hwanbulhaeyo
환불합니다
hwahn-bool-hahm-nee-dah
hwanbulhamnida
Past
환불했어
hwahn-bool-hae-ssuh
hwanbulhaesseo
환불했어요
hwahn-bool-hae-ssuh-yoh
hwanbulhaesseoyo
환불했습니다
hwahn-bool-hae-sseum-nee-dah
hwanbulhaesseumnida
Future
환불할 거야
hwahn-bool-hahl guh-yah
hwanbulhal geoya
환불할 거예요
hwahn-bool-hahl guh-yae-yoh
hwanbulhal geoyeyo
환불할 겁니다
hwahn-bool-hahl guhm-nee-dah
hwanbulhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
환불하세요
hwahn-bool-hah-sae-yoh
hwanbulhaseyo
Suggestion / Let's Polite (요)
환불해요
hwahn-bool-hae-yoh
hwanbulhaeyo
Question Polite (요)
환불해요?
hwahn-bool-hae-yoh-?
hwanbulhaeyo?
Connective "and" — (고)
환불하고
hwahn-bool-hah-goh
hwanbulhago
Conditional "if" — (면)
환불하면
hwahn-bool-hah-myuhn
hwanbulhamyeon
Progressive (고 있어요)
환불하고 있어요
hwahn-bool-hah-goh ee-ssuh-yoh
hwanbulhago isseoyo
Want to (고 싶어요)
환불하고 싶어요
hwahn-bool-hah-goh shee-puh-yoh
hwanbulhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
환불할 수 있어요
hwahn-bool-hahl soo ee-ssuh-yoh
hwanbulhal su isseoyo
Because / So (아/어서)
환불해서
hwahn-bool-hae-suh
hwanbulhaeseo
Noun form — (기)
환불하기
hwahn-bool-hah-gee
hwanbulhagi
Noun form — (음)
환불함
hwahn-bool-hahm
hwanbulham