Verbseoul.
하다 verb
요하다yohadato need, to require

To say to need, to require politely in the present tense, use 요해요 (yoh-hae-yoh). Below is the full conjugation of 요하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
요해
yoh-hae
요해요
yoh-hae-yoh
요합니다
yoh-hahm-nee-dah
Past
요했어
yoh-hae-ssuh
요했어요
yoh-hae-ssuh-yoh
요했습니다
yoh-hae-sseum-nee-dah
Future
요할 거야
yoh-hahl- -guh-yah
요할 거예요
yoh-hahl- -guh-yae-yoh
요할 겁니다
yoh-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
요하세요
yoh-hah-sae-yoh
Suggestion / Let's Polite (요)
요해요
yoh-hae-yoh
Question Polite (요)
요해요?
yoh-hae-yoh-?
Connective “and” — (고)
요하고
yoh-hah-goh
Conditional “if” — (면)
요하면
yoh-hah-myuhn
Noun form — (기)
요함
yoh-hahm