Verbseoul.
하다 verb (adj)
오만하다omanhadaproud

To say proud politely in the present tense, use 오만해요 (oh-mahn-hae-yoh). Below is the full conjugation of 오만하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
오만해
oh-mahn-hae
오만해요
oh-mahn-hae-yoh
오만합니다
oh-mahn-hahm-nee-dah
Past
오만했어
oh-mahn-hae-ssuh
오만했어요
oh-mahn-hae-ssuh-yoh
오만했습니다
oh-mahn-hae-sseum-nee-dah
Future
오만할 거야
oh-mahn-hahl- -guh-yah
오만할 거예요
oh-mahn-hahl- -guh-yae-yoh
오만할 겁니다
oh-mahn-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
오만하세요
oh-mahn-hah-sae-yoh
Suggestion / Let's Polite (요)
오만해요
oh-mahn-hae-yoh
Question Polite (요)
오만해요?
oh-mahn-hae-yoh-?
Connective “and” — (고)
오만하고
oh-mahn-hah-goh
Conditional “if” — (면)
오만하면
oh-mahn-hah-myuhn
Noun form — (기)
오만함
oh-mahn-hahm