Verbseoul.
하다 verb

사망하다 conjugation (samanghada, to die)

To say to die politely in the present tense, use 사망해요 (sah-mahng-hae-yoh) · samanghaeyo. Below is the full conjugation of 사망하다 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
사망해
sah-mahng-hae
samanghae
사망해요
sah-mahng-hae-yoh
samanghaeyo
사망합니다
sah-mahng-hahm-nee-dah
samanghamnida
Past
사망했어
sah-mahng-hae-ssuh
samanghaesseo
사망했어요
sah-mahng-hae-ssuh-yoh
samanghaesseoyo
사망했습니다
sah-mahng-hae-sseum-nee-dah
samanghaesseumnida
Future
사망할 거야
sah-mahng-hahl guh-yah
samanghal geoya
사망할 거예요
sah-mahng-hahl guh-yae-yoh
samanghal geoyeyo
사망할 겁니다
sah-mahng-hahl guhm-nee-dah
samanghal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
사망하세요
sah-mahng-hah-sae-yoh
samanghaseyo
Suggestion / Let's Polite (요)
사망해요
sah-mahng-hae-yoh
samanghaeyo
Question Polite (요)
사망해요?
sah-mahng-hae-yoh-?
samanghaeyo?
Connective "and" — (고)
사망하고
sah-mahng-hah-goh
samanghago
Conditional "if" — (면)
사망하면
sah-mahng-hah-myuhn
samanghamyeon
Progressive (고 있어요)
사망하고 있어요
sah-mahng-hah-goh ee-ssuh-yoh
samanghago isseoyo
Want to (고 싶어요)
사망하고 싶어요
sah-mahng-hah-goh shee-puh-yoh
samanghago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
사망할 수 있어요
sah-mahng-hahl soo ee-ssuh-yoh
samanghal su isseoyo
Because / So (아/어서)
사망해서
sah-mahng-hae-suh
samanghaeseo
Noun form — (기)
사망하기
sah-mahng-hah-gee
samanghagi
Noun form — (음)
사망함
sah-mahng-hahm
samangham