Verbseoul.
descriptive

재밌다 conjugation (jaemitda, contraction of 재미있다 (to be fun))

To say contraction of 재미있다 (to be fun) politely in the present tense, use 재밌어요 (chae-mee-ssuh-yoh) · jaemisseoyo. Below is the full conjugation of 재밌다 across the three tenses and three everyday speech levels.

Grammar note (descriptive): Descriptive verbs (형용사) function like adjectives in Korean and conjugate the same way as regular action verbs. They cannot take the progressive -고 있어요 or imperative forms. 좋다 (to be good) → 좋아요; 크다 (to be big) → 커요 (으-irregular).

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

TenseCasual (반말)Polite (요)Formal (합니다)
Present
재밌어
chae-mee-ssuh
jaemisseo
재밌어요
chae-mee-ssuh-yoh
jaemisseoyo
재밌습니다
chae-mee-sseum-nee-dah
jaemisseumnida
Past
재밌었어
chae-mee-ssuh-ssuh
jaemisseosseo
재밌었어요
chae-mee-ssuh-ssuh-yoh
jaemisseosseoyo
재밌었습니다
chae-mee-ssuh-sseum-nee-dah
jaemisseosseumnida
Future
재밌을 거야
chae-mee-sseul guh-yah
jaemisseul geoya
재밌을 거예요
chae-mee-sseul guh-yae-yoh
jaemisseul geoyeyo
재밌을 겁니다
chae-mee-sseul guhm-nee-dah
jaemisseul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
재밌으세요
chae-mee-sseu-sae-yoh
jaemisseuseyo
Suggestion / Let's Polite (요)
재밌어요
chae-mee-ssuh-yoh
jaemisseoyo
Question Polite (요)
재밌어요?
chae-mee-ssuh-yoh-?
jaemisseoyo?
Connective "and" — (고)
재밌고
chae-meet-goh
jaemitgo
Conditional "if" — (면)
재밌으면
chae-mee-sseu-myuhn
jaemisseumyeon
Progressive (고 있어요)
재밌고 있어요
chae-meet-goh ee-ssuh-yoh
jaemitgo isseoyo
Want to (고 싶어요)
재밌고 싶어요
chae-meet-goh shee-puh-yoh
jaemitgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
재밌을 수 있어요
chae-mee-sseul soo ee-ssuh-yoh
jaemisseul su isseoyo
Because / So (아/어서)
재밌어서
chae-mee-ssuh-suh
jaemisseoseo
Noun form — (기)
재밌기
chae-meet-gee
jaemitgi
Noun form — (음)
재밌음
chae-mee-sseum
jaemisseum