Verbseoul.
regular
죽이다jukidato kill, to cause to die

To say to kill, to cause to die politely in the present tense, use 죽여요 (choo-gyuh-yoh). Below is the full conjugation of 죽이다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
죽여
choo-gyuh
죽여요
choo-gyuh-yoh
죽입니다
choo-geem-nee-dah
Past
죽였어
choo-gyuh-ssuh
죽였어요
choo-gyuh-ssuh-yoh
죽였습니다
choo-gyuh-sseum-nee-dah
Future
죽일 거야
choo-geel- -guh-yah
죽일 거예요
choo-geel- -guh-yae-yoh
죽일 겁니다
choo-geel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
죽이세요
choo-gee-sae-yoh
Suggestion / Let's Polite (요)
죽여요
choo-gyuh-yoh
Question Polite (요)
죽여요?
choo-gyuh-yoh-?
Connective “and” — (고)
죽이고
choo-gee-goh
Conditional “if” — (면)
죽이면
choo-gee-myuhn
Noun form — (기)
죽임
choo-geem