Verbseoul.
하다 verb (adj)

망연하다 conjugation (mangyeonhada, clueless)

To say clueless politely in the present tense, use 망연해요 (mahng-yuhn-hae-yoh) · mangyeonhaeyo. Below is the full conjugation of 망연하다 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
망연해
mahng-yuhn-hae
mangyeonhae
망연해요
mahng-yuhn-hae-yoh
mangyeonhaeyo
망연합니다
mahng-yuhn-hahm-nee-dah
mangyeonhamnida
Past
망연했어
mahng-yuhn-hae-ssuh
mangyeonhaesseo
망연했어요
mahng-yuhn-hae-ssuh-yoh
mangyeonhaesseoyo
망연했습니다
mahng-yuhn-hae-sseum-nee-dah
mangyeonhaesseumnida
Future
망연할 거야
mahng-yuhn-hahl guh-yah
mangyeonhal geoya
망연할 거예요
mahng-yuhn-hahl guh-yae-yoh
mangyeonhal geoyeyo
망연할 겁니다
mahng-yuhn-hahl guhm-nee-dah
mangyeonhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
망연하세요
mahng-yuhn-hah-sae-yoh
mangyeonhaseyo
Suggestion / Let's Polite (요)
망연해요
mahng-yuhn-hae-yoh
mangyeonhaeyo
Question Polite (요)
망연해요?
mahng-yuhn-hae-yoh-?
mangyeonhaeyo?
Connective "and" — (고)
망연하고
mahng-yuhn-hah-goh
mangyeonhago
Conditional "if" — (면)
망연하면
mahng-yuhn-hah-myuhn
mangyeonhamyeon
Progressive (고 있어요)
망연하고 있어요
mahng-yuhn-hah-goh ee-ssuh-yoh
mangyeonhago isseoyo
Want to (고 싶어요)
망연하고 싶어요
mahng-yuhn-hah-goh shee-puh-yoh
mangyeonhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
망연할 수 있어요
mahng-yuhn-hahl soo ee-ssuh-yoh
mangyeonhal su isseoyo
Because / So (아/어서)
망연해서
mahng-yuhn-hae-suh
mangyeonhaeseo
Noun form — (기)
망연하기
mahng-yuhn-hah-gee
mangyeonhagi
Noun form — (음)
망연함
mahng-yuhn-hahm
mangyeonham