Verbseoul.
regular
떠나다tteonadato leave

To say to leave politely in the present tense, use 떠나요 (ttuh-nah-yoh). Below is the full conjugation of 떠나다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
떠나
ttuh-nah
떠나요
ttuh-nah-yoh
떠납니다
ttuh-nahm-nee-dah
Past
떠났어
ttuh-nah-ssuh
떠났어요
ttuh-nah-ssuh-yoh
떠났습니다
ttuh-nah-sseum-nee-dah
Future
떠날 거야
ttuh-nahl- -guh-yah
떠날 거예요
ttuh-nahl- -guh-yae-yoh
떠날 겁니다
ttuh-nahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
떠나세요
ttuh-nah-sae-yoh
Suggestion / Let's Polite (요)
떠나요
ttuh-nah-yoh
Question Polite (요)
떠나요?
ttuh-nah-yoh-?
Connective “and” — (고)
떠나고
ttuh-nah-goh
Conditional “if” — (면)
떠나면
ttuh-nah-myuhn
Noun form — (기)
떠남
ttuh-nahm