Verbseoul.
하다 verb
제의하다jeuihadato suggest, to offer, to propose

To say to suggest, to offer, to propose politely in the present tense, use 제의해요 (chae-ui-hae-yoh). Below is the full conjugation of 제의하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
제의해
chae-ui-hae
제의해요
chae-ui-hae-yoh
제의합니다
chae-ui-hahm-nee-dah
Past
제의했어
chae-ui-hae-ssuh
제의했어요
chae-ui-hae-ssuh-yoh
제의했습니다
chae-ui-hae-sseum-nee-dah
Future
제의할 거야
chae-ui-hahl- -guh-yah
제의할 거예요
chae-ui-hahl- -guh-yae-yoh
제의할 겁니다
chae-ui-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
제의하세요
chae-ui-hah-sae-yoh
Suggestion / Let's Polite (요)
제의해요
chae-ui-hae-yoh
Question Polite (요)
제의해요?
chae-ui-hae-yoh-?
Connective “and” — (고)
제의하고
chae-ui-hah-goh
Conditional “if” — (면)
제의하면
chae-ui-hah-myuhn
Noun form — (기)
제의함
chae-ui-hahm