Verbseoul.
하다 verb
수술하다susulhadato operate on (surgically), to perform a surgery

To say to operate on (surgically), to perform a surgery politely in the present tense, use 수술해요 (soo-sool-hae-yoh). Below is the full conjugation of 수술하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
수술해
soo-sool-hae
수술해요
soo-sool-hae-yoh
수술합니다
soo-sool-hahm-nee-dah
Past
수술했어
soo-sool-hae-ssuh
수술했어요
soo-sool-hae-ssuh-yoh
수술했습니다
soo-sool-hae-sseum-nee-dah
Future
수술할 거야
soo-sool-hahl- -guh-yah
수술할 거예요
soo-sool-hahl- -guh-yae-yoh
수술할 겁니다
soo-sool-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
수술하세요
soo-sool-hah-sae-yoh
Suggestion / Let's Polite (요)
수술해요
soo-sool-hae-yoh
Question Polite (요)
수술해요?
soo-sool-hae-yoh-?
Connective “and” — (고)
수술하고
soo-sool-hah-goh
Conditional “if” — (면)
수술하면
soo-sool-hah-myuhn
Noun form — (기)
수술함
soo-sool-hahm