Verbseoul.
하다 verb

별세하다 conjugation (byeolsehada, to die)

To say to die politely in the present tense, use 별세해요 (byuhl-sae-hae-yoh) · byeolsehaeyo. Below is the full conjugation of 별세하다 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
별세해
byuhl-sae-hae
byeolsehae
별세해요
byuhl-sae-hae-yoh
byeolsehaeyo
별세합니다
byuhl-sae-hahm-nee-dah
byeolsehamnida
Past
별세했어
byuhl-sae-hae-ssuh
byeolsehaesseo
별세했어요
byuhl-sae-hae-ssuh-yoh
byeolsehaesseoyo
별세했습니다
byuhl-sae-hae-sseum-nee-dah
byeolsehaesseumnida
Future
별세할 거야
byuhl-sae-hahl guh-yah
byeolsehal geoya
별세할 거예요
byuhl-sae-hahl guh-yae-yoh
byeolsehal geoyeyo
별세할 겁니다
byuhl-sae-hahl guhm-nee-dah
byeolsehal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
별세하세요
byuhl-sae-hah-sae-yoh
byeolsehaseyo
Suggestion / Let's Polite (요)
별세해요
byuhl-sae-hae-yoh
byeolsehaeyo
Question Polite (요)
별세해요?
byuhl-sae-hae-yoh-?
byeolsehaeyo?
Connective "and" — (고)
별세하고
byuhl-sae-hah-goh
byeolsehago
Conditional "if" — (면)
별세하면
byuhl-sae-hah-myuhn
byeolsehamyeon
Progressive (고 있어요)
별세하고 있어요
byuhl-sae-hah-goh ee-ssuh-yoh
byeolsehago isseoyo
Want to (고 싶어요)
별세하고 싶어요
byuhl-sae-hah-goh shee-puh-yoh
byeolsehago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
별세할 수 있어요
byuhl-sae-hahl soo ee-ssuh-yoh
byeolsehal su isseoyo
Because / So (아/어서)
별세해서
byuhl-sae-hae-suh
byeolsehaeseo
Noun form — (기)
별세하기
byuhl-sae-hah-gee
byeolsehagi
Noun form — (음)
별세함
byuhl-sae-hahm
byeolseham