Verbseoul.
하다 verb (adj)

흥미진진하다 conjugation (heungmijinjinhada, to be of great interest, to be very interesting)

To say to be of great interest, to be very interesting politely in the present tense, use 흥미진진해요 (heung-mee-cheen-cheen-hae-yoh) · heungmijinjinhaeyo. Below is the full conjugation of 흥미진진하다 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
흥미진진해
heung-mee-cheen-cheen-hae
heungmijinjinhae
흥미진진해요
heung-mee-cheen-cheen-hae-yoh
heungmijinjinhaeyo
흥미진진합니다
heung-mee-cheen-cheen-hahm-nee-dah
heungmijinjinhamnida
Past
흥미진진했어
heung-mee-cheen-cheen-hae-ssuh
heungmijinjinhaesseo
흥미진진했어요
heung-mee-cheen-cheen-hae-ssuh-yoh
heungmijinjinhaesseoyo
흥미진진했습니다
heung-mee-cheen-cheen-hae-sseum-nee-dah
heungmijinjinhaesseumnida
Future
흥미진진할 거야
heung-mee-cheen-cheen-hahl guh-yah
heungmijinjinhal geoya
흥미진진할 거예요
heung-mee-cheen-cheen-hahl guh-yae-yoh
heungmijinjinhal geoyeyo
흥미진진할 겁니다
heung-mee-cheen-cheen-hahl guhm-nee-dah
heungmijinjinhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
흥미진진하세요
heung-mee-cheen-cheen-hah-sae-yoh
heungmijinjinhaseyo
Suggestion / Let's Polite (요)
흥미진진해요
heung-mee-cheen-cheen-hae-yoh
heungmijinjinhaeyo
Question Polite (요)
흥미진진해요?
heung-mee-cheen-cheen-hae-yoh-?
heungmijinjinhaeyo?
Connective "and" — (고)
흥미진진하고
heung-mee-cheen-cheen-hah-goh
heungmijinjinhago
Conditional "if" — (면)
흥미진진하면
heung-mee-cheen-cheen-hah-myuhn
heungmijinjinhamyeon
Progressive (고 있어요)
흥미진진하고 있어요
heung-mee-cheen-cheen-hah-goh ee-ssuh-yoh
heungmijinjinhago isseoyo
Want to (고 싶어요)
흥미진진하고 싶어요
heung-mee-cheen-cheen-hah-goh shee-puh-yoh
heungmijinjinhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
흥미진진할 수 있어요
heung-mee-cheen-cheen-hahl soo ee-ssuh-yoh
heungmijinjinhal su isseoyo
Because / So (아/어서)
흥미진진해서
heung-mee-cheen-cheen-hae-suh
heungmijinjinhaeseo
Noun form — (기)
흥미진진하기
heung-mee-cheen-cheen-hah-gee
heungmijinjinhagi
Noun form — (음)
흥미진진함
heung-mee-cheen-cheen-hahm
heungmijinjinham