Verbseoul.
하다 verb
복무하다bokmuhadato serve

To say to serve politely in the present tense, use 복무해요 (bohng-moo-hae-yoh). Below is the full conjugation of 복무하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
복무해
bohng-moo-hae
복무해요
bohng-moo-hae-yoh
복무합니다
bohng-moo-hahm-nee-dah
Past
복무했어
bohng-moo-hae-ssuh
복무했어요
bohng-moo-hae-ssuh-yoh
복무했습니다
bohng-moo-hae-sseum-nee-dah
Future
복무할 거야
bohng-moo-hahl- -guh-yah
복무할 거예요
bohng-moo-hahl- -guh-yae-yoh
복무할 겁니다
bohng-moo-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
복무하세요
bohng-moo-hah-sae-yoh
Suggestion / Let's Polite (요)
복무해요
bohng-moo-hae-yoh
Question Polite (요)
복무해요?
bohng-moo-hae-yoh-?
Connective “and” — (고)
복무하고
bohng-moo-hah-goh
Conditional “if” — (면)
복무하면
bohng-moo-hah-myuhn
Noun form — (기)
복무함
bohng-moo-hahm