Verbseoul.
regular
남기다namgidato leave behind

To say to leave behind politely in the present tense, use 남겨요 (nahm-gyuh-yoh). Below is the full conjugation of 남기다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
남겨
nahm-gyuh
남겨요
nahm-gyuh-yoh
남깁니다
nahm-geem-nee-dah
Past
남겼어
nahm-gyuh-ssuh
남겼어요
nahm-gyuh-ssuh-yoh
남겼습니다
nahm-gyuh-sseum-nee-dah
Future
남길 거야
nahm-geel- -guh-yah
남길 거예요
nahm-geel- -guh-yae-yoh
남길 겁니다
nahm-geel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
남기세요
nahm-gee-sae-yoh
Suggestion / Let's Polite (요)
남겨요
nahm-gyuh-yoh
Question Polite (요)
남겨요?
nahm-gyuh-yoh-?
Connective “and” — (고)
남기고
nahm-gee-goh
Conditional “if” — (면)
남기면
nahm-gee-myuhn
Noun form — (기)
남김
nahm-geem