Verbseoul.
하다 verb (adj)

유하다 conjugation (yuhada, to be)

To say to be politely in the present tense, use 유해요 (yoo-hae-yoh) · yuhaeyo. Below is the full conjugation of 유하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb (adj)): 하다 adjectives use the same verb 하다 as a suffix to turn descriptive nouns into predicates (행복하다 = to be happy). They conjugate identically to 하다 verbs: the 하 contracts before -아/-어 suffixes to give 해. 행복해요, 행복했어요, 행복합니다. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
유해
yoo-hae
yuhae
유해요
yoo-hae-yoh
yuhaeyo
유합니다
yoo-hahm-nee-dah
yuhamnida
Past
유했어
yoo-hae-ssuh
yuhaesseo
유했어요
yoo-hae-ssuh-yoh
yuhaesseoyo
유했습니다
yoo-hae-sseum-nee-dah
yuhaesseumnida
Future
유할 거야
yoo-hahl guh-yah
yuhal geoya
유할 거예요
yoo-hahl guh-yae-yoh
yuhal geoyeyo
유할 겁니다
yoo-hahl guhm-nee-dah
yuhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
유하세요
yoo-hah-sae-yoh
yuhaseyo
Suggestion / Let's Polite (요)
유해요
yoo-hae-yoh
yuhaeyo
Question Polite (요)
유해요?
yoo-hae-yoh-?
yuhaeyo?
Connective "and" — (고)
유하고
yoo-hah-goh
yuhago
Conditional "if" — (면)
유하면
yoo-hah-myuhn
yuhamyeon
Progressive (고 있어요)
유하고 있어요
yoo-hah-goh ee-ssuh-yoh
yuhago isseoyo
Want to (고 싶어요)
유하고 싶어요
yoo-hah-goh shee-puh-yoh
yuhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
유할 수 있어요
yoo-hahl soo ee-ssuh-yoh
yuhal su isseoyo
Because / So (아/어서)
유해서
yoo-hae-suh
yuhaeseo
Noun form — (기)
유하기
yoo-hah-gee
yuhagi
Noun form — (음)
유함
yoo-hahm
yuham