Verbseoul.
하다 verb (adj)

복잡하다 conjugation (bokjaphada, to be complicated)

To say to be complicated politely in the present tense, use 복잡해요 (bohg-chah-pae-yoh) · bokjapaeyo. Below is the full conjugation of 복잡하다 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
복잡해
bohg-chah-pae
bokjapae
복잡해요
bohg-chah-pae-yoh
bokjapaeyo
복잡합니다
bohg-chah-pahm-nee-dah
bokjapamnida
Past
복잡했어
bohg-chah-pae-ssuh
bokjapaesseo
복잡했어요
bohg-chah-pae-ssuh-yoh
bokjapaesseoyo
복잡했습니다
bohg-chah-pae-sseum-nee-dah
bokjapaesseumnida
Future
복잡할 거야
bohg-chah-pahl guh-yah
bokjapal geoya
복잡할 거예요
bohg-chah-pahl guh-yae-yoh
bokjapal geoyeyo
복잡할 겁니다
bohg-chah-pahl guhm-nee-dah
bokjapal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
복잡하세요
bohg-chah-pah-sae-yoh
bokjapaseyo
Suggestion / Let's Polite (요)
복잡해요
bohg-chah-pae-yoh
bokjapaeyo
Question Polite (요)
복잡해요?
bohg-chah-pae-yoh-?
bokjapaeyo?
Connective "and" — (고)
복잡하고
bohg-chah-pah-goh
bokjapago
Conditional "if" — (면)
복잡하면
bohg-chah-pah-myuhn
bokjapamyeon
Progressive (고 있어요)
복잡하고 있어요
bohg-chah-pah-goh ee-ssuh-yoh
bokjapago isseoyo
Want to (고 싶어요)
복잡하고 싶어요
bohg-chah-pah-goh shee-puh-yoh
bokjapago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
복잡할 수 있어요
bohg-chah-pahl soo ee-ssuh-yoh
bokjapal su isseoyo
Because / So (아/어서)
복잡해서
bohg-chah-pae-suh
bokjapaeseo
Noun form — (기)
복잡하기
bohg-chah-pah-gee
bokjapagi
Noun form — (음)
복잡함
bohg-chah-pahm
bokjapam