Verbseoul.
하다 verb (adj)

완벽하다 conjugation (wanbyeokhada, perfect, immaculate, flawless)

To say perfect, immaculate, flawless politely in the present tense, use 완벽해요 (wahn-byuh-kae-yoh) · wanbyeokaeyo. Below is the full conjugation of 완벽하다 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
완벽해
wahn-byuh-kae
wanbyeokae
완벽해요
wahn-byuh-kae-yoh
wanbyeokaeyo
완벽합니다
wahn-byuh-kahm-nee-dah
wanbyeokamnida
Past
완벽했어
wahn-byuh-kae-ssuh
wanbyeokaesseo
완벽했어요
wahn-byuh-kae-ssuh-yoh
wanbyeokaesseoyo
완벽했습니다
wahn-byuh-kae-sseum-nee-dah
wanbyeokaesseumnida
Future
완벽할 거야
wahn-byuh-kahl guh-yah
wanbyeokal geoya
완벽할 거예요
wahn-byuh-kahl guh-yae-yoh
wanbyeokal geoyeyo
완벽할 겁니다
wahn-byuh-kahl guhm-nee-dah
wanbyeokal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
완벽하세요
wahn-byuh-kah-sae-yoh
wanbyeokaseyo
Suggestion / Let's Polite (요)
완벽해요
wahn-byuh-kae-yoh
wanbyeokaeyo
Question Polite (요)
완벽해요?
wahn-byuh-kae-yoh-?
wanbyeokaeyo?
Connective "and" — (고)
완벽하고
wahn-byuh-kah-goh
wanbyeokago
Conditional "if" — (면)
완벽하면
wahn-byuh-kah-myuhn
wanbyeokamyeon
Progressive (고 있어요)
완벽하고 있어요
wahn-byuh-kah-goh ee-ssuh-yoh
wanbyeokago isseoyo
Want to (고 싶어요)
완벽하고 싶어요
wahn-byuh-kah-goh shee-puh-yoh
wanbyeokago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
완벽할 수 있어요
wahn-byuh-kahl soo ee-ssuh-yoh
wanbyeokal su isseoyo
Because / So (아/어서)
완벽해서
wahn-byuh-kae-suh
wanbyeokaeseo
Noun form — (기)
완벽하기
wahn-byuh-kah-gee
wanbyeokagi
Noun form — (음)
완벽함
wahn-byuh-kahm
wanbyeokam