Verbseoul.
descriptive
젊다jeomdato be young, to be youthful

To say to be young, to be youthful politely in the present tense, use 젊어요 (chuhl-muh-yoh). Below is the full conjugation of 젊다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
젊어
chuhl-muh
젊어요
chuhl-muh-yoh
젊습니다
chuhm-seum-nee-dah
Past
젊었어
chuhl-muh-ssuh
젊었어요
chuhl-muh-ssuh-yoh
젊었습니다
chuhl-muh-sseum-nee-dah
Future
젊을 거야
chuhl-meul- -guh-yah
젊을 거예요
chuhl-meul- -guh-yae-yoh
젊을 겁니다
chuhl-meul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
젊으세요
chuhl-meu-sae-yoh
Suggestion / Let's Polite (요)
젊어요
chuhl-muh-yoh
Question Polite (요)
젊어요?
chuhl-muh-yoh-?
Connective “and” — (고)
젊고
chuhm-goh
Conditional “if” — (면)
젊으면
chuhl-meu-myuhn
Noun form — (기)
젊음
chuhl-meum