Verbseoul.
하다 verb (adj)

주요하다 conjugation (juyohada, to be main)

To say to be main politely in the present tense, use 주요해요 (choo-yoh-hae-yoh) · juyohaeyo. Below is the full conjugation of 주요하다 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
주요해
choo-yoh-hae
juyohae
주요해요
choo-yoh-hae-yoh
juyohaeyo
주요합니다
choo-yoh-hahm-nee-dah
juyohamnida
Past
주요했어
choo-yoh-hae-ssuh
juyohaesseo
주요했어요
choo-yoh-hae-ssuh-yoh
juyohaesseoyo
주요했습니다
choo-yoh-hae-sseum-nee-dah
juyohaesseumnida
Future
주요할 거야
choo-yoh-hahl guh-yah
juyohal geoya
주요할 거예요
choo-yoh-hahl guh-yae-yoh
juyohal geoyeyo
주요할 겁니다
choo-yoh-hahl guhm-nee-dah
juyohal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
주요하세요
choo-yoh-hah-sae-yoh
juyohaseyo
Suggestion / Let's Polite (요)
주요해요
choo-yoh-hae-yoh
juyohaeyo
Question Polite (요)
주요해요?
choo-yoh-hae-yoh-?
juyohaeyo?
Connective "and" — (고)
주요하고
choo-yoh-hah-goh
juyohago
Conditional "if" — (면)
주요하면
choo-yoh-hah-myuhn
juyohamyeon
Progressive (고 있어요)
주요하고 있어요
choo-yoh-hah-goh ee-ssuh-yoh
juyohago isseoyo
Want to (고 싶어요)
주요하고 싶어요
choo-yoh-hah-goh shee-puh-yoh
juyohago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
주요할 수 있어요
choo-yoh-hahl soo ee-ssuh-yoh
juyohal su isseoyo
Because / So (아/어서)
주요해서
choo-yoh-hae-suh
juyohaeseo
Noun form — (기)
주요하기
choo-yoh-hah-gee
juyohagi
Noun form — (음)
주요함
choo-yoh-hahm
juyoham