Verbseoul.
하다 verb (adj)
유하다yuhadato be

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

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
유해
yoo-hae
유해요
yoo-hae-yoh
유합니다
yoo-hahm-nee-dah
Past
유했어
yoo-hae-ssuh
유했어요
yoo-hae-ssuh-yoh
유했습니다
yoo-hae-sseum-nee-dah
Future
유할 거야
yoo-hahl- -guh-yah
유할 거예요
yoo-hahl- -guh-yae-yoh
유할 겁니다
yoo-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
유하세요
yoo-hah-sae-yoh
Suggestion / Let's Polite (요)
유해요
yoo-hae-yoh
Question Polite (요)
유해요?
yoo-hae-yoh-?
Connective “and” — (고)
유하고
yoo-hah-goh
Conditional “if” — (면)
유하면
yoo-hah-myuhn
Noun form — (기)
유함
yoo-hahm