Verbseoul.
르 irregular (adj)
재빠르다jaeppareudato be quick, swift, nimble

To say to be quick, swift, nimble politely in the present tense, use 재빨라요 (chae-bbahl-rah-yoh). Below is the full conjugation of 재빠르다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
재빨라
chae-bbahl-rah
재빨라요
chae-bbahl-rah-yoh
재빠릅니다
chae-bbah-reum-nee-dah
Past
재빨랐어
chae-bbahl-rah-ssuh
재빨랐어요
chae-bbahl-rah-ssuh-yoh
재빨랐습니다
chae-bbahl-rah-sseum-nee-dah
Future
재빠를 거야
chae-bbah-reul- -guh-yah
재빠를 거예요
chae-bbah-reul- -guh-yae-yoh
재빠를 겁니다
chae-bbah-reul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
재빠르세요
chae-bbah-reu-sae-yoh
Suggestion / Let's Polite (요)
재빨라요
chae-bbahl-rah-yoh
Question Polite (요)
재빨라요?
chae-bbahl-rah-yoh-?
Connective “and” — (고)
재빠르고
chae-bbah-reu-goh
Conditional “if” — (면)
재빠르면
chae-bbah-reu-myuhn
Noun form — (기)
재빠름
chae-bbah-reum