Verbseoul.
descriptive

잽싸다 conjugation (jaepssada, quick, fast, nimble)

To say quick, fast, nimble politely in the present tense, use 잽싸요 (chaep-ssah-yoh) · jaepssayo. Below is the full conjugation of 잽싸다 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
잽싸
chaep-ssah
jaepssa
잽싸요
chaep-ssah-yoh
jaepssayo
잽쌉니다
chaep-ssahm-nee-dah
jaepssamnida
Past
잽쌌어
chaep-ssah-ssuh
jaepssasseo
잽쌌어요
chaep-ssah-ssuh-yoh
jaepssasseoyo
잽쌌습니다
chaep-ssah-sseum-nee-dah
jaepssasseumnida
Future
잽쌀 거야
chaep-ssahl guh-yah
jaepssal geoya
잽쌀 거예요
chaep-ssahl guh-yae-yoh
jaepssal geoyeyo
잽쌀 겁니다
chaep-ssahl guhm-nee-dah
jaepssal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
잽싸세요
chaep-ssah-sae-yoh
jaepssaseyo
Suggestion / Let's Polite (요)
잽싸요
chaep-ssah-yoh
jaepssayo
Question Polite (요)
잽싸요?
chaep-ssah-yoh-?
jaepssayo?
Connective "and" — (고)
잽싸고
chaep-ssah-goh
jaepssago
Conditional "if" — (면)
잽싸면
chaep-ssah-myuhn
jaepssamyeon
Progressive (고 있어요)
잽싸고 있어요
chaep-ssah-goh ee-ssuh-yoh
jaepssago isseoyo
Want to (고 싶어요)
잽싸고 싶어요
chaep-ssah-goh shee-puh-yoh
jaepssago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
잽쌀 수 있어요
chaep-ssahl soo ee-ssuh-yoh
jaepssal su isseoyo
Because / So (아/어서)
잽싸서
chaep-ssah-suh
jaepssaseo
Noun form — (기)
잽싸기
chaep-ssah-gee
jaepssagi
Noun form — (음)
잽쌈
chaep-ssahm
jaepssam