Verbseoul.
하다 verb
사과하다sagwahadato apologize

To say to apologize politely in the present tense, use 사과해요 (sah-gwah-hae-yoh). Below is the full conjugation of 사과하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
사과해
sah-gwah-hae
사과해요
sah-gwah-hae-yoh
사과합니다
sah-gwah-hahm-nee-dah
Past
사과했어
sah-gwah-hae-ssuh
사과했어요
sah-gwah-hae-ssuh-yoh
사과했습니다
sah-gwah-hae-sseum-nee-dah
Future
사과할 거야
sah-gwah-hahl- -guh-yah
사과할 거예요
sah-gwah-hahl- -guh-yae-yoh
사과할 겁니다
sah-gwah-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
사과하세요
sah-gwah-hah-sae-yoh
Suggestion / Let's Polite (요)
사과해요
sah-gwah-hae-yoh
Question Polite (요)
사과해요?
sah-gwah-hae-yoh-?
Connective “and” — (고)
사과하고
sah-gwah-hah-goh
Conditional “if” — (면)
사과하면
sah-gwah-hah-myuhn
Noun form — (기)
사과함
sah-gwah-hahm