Verbseoul.Korean verb conjugator
르 irregular
모르다moreudato not know

To say to not know politely in the present tense, use 몰라요 (mohl-rah-yoh). Below is the full conjugation of 모르다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
몰라
mohl-rah
몰라요
mohl-rah-yoh
모릅니다
moh-reum-nee-dah
Past
몰랐어
mohl-rah-ssuh
몰랐어요
mohl-rah-ssuh-yoh
몰랐습니다
mohl-rah-sseum-nee-dah
Future
모를 거야
moh-reul- -guh-yah
모를 거예요
moh-reul- -guh-yae-yoh
모를 겁니다
moh-reul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
모르세요
moh-reu-sae-yoh
Suggestion / Let's Polite (요)
몰라요
mohl-rah-yoh
Question Polite (요)
몰라요?
mohl-rah-yoh-?
Connective “and” — (고)
모르고
moh-reu-goh
Conditional “if” — (면)
모르면
moh-reu-myuhn
Noun form — (기)
모름
moh-reum