Verbseoul.
regular
해치다haechidato hurt, to harm, to injure

To say to hurt, to harm, to injure politely in the present tense, use 해쳐요 (hae-chyuh-yoh). Below is the full conjugation of 해치다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
해쳐
hae-chyuh
해쳐요
hae-chyuh-yoh
해칩니다
hae-cheem-nee-dah
Past
해쳤어
hae-chyuh-ssuh
해쳤어요
hae-chyuh-ssuh-yoh
해쳤습니다
hae-chyuh-sseum-nee-dah
Future
해칠 거야
hae-cheel- -guh-yah
해칠 거예요
hae-cheel- -guh-yae-yoh
해칠 겁니다
hae-cheel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
해치세요
hae-chee-sae-yoh
Suggestion / Let's Polite (요)
해쳐요
hae-chyuh-yoh
Question Polite (요)
해쳐요?
hae-chyuh-yoh-?
Connective “and” — (고)
해치고
hae-chee-goh
Conditional “if” — (면)
해치면
hae-chee-myuhn
Noun form — (기)
해침
hae-cheem