Verbseoul.
regular
두드리다dudeuridato knock, to tap, to beat, to rap

To say to knock, to tap, to beat, to rap politely in the present tense, use 두드려요 (doo-deu-ryuh-yoh). Below is the full conjugation of 두드리다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
두드려
doo-deu-ryuh
두드려요
doo-deu-ryuh-yoh
두드립니다
doo-deu-reem-nee-dah
Past
두드렸어
doo-deu-ryuh-ssuh
두드렸어요
doo-deu-ryuh-ssuh-yoh
두드렸습니다
doo-deu-ryuh-sseum-nee-dah
Future
두드릴 거야
doo-deu-reel- -guh-yah
두드릴 거예요
doo-deu-reel- -guh-yae-yoh
두드릴 겁니다
doo-deu-reel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
두드리세요
doo-deu-ree-sae-yoh
Suggestion / Let's Polite (요)
두드려요
doo-deu-ryuh-yoh
Question Polite (요)
두드려요?
doo-deu-ryuh-yoh-?
Connective “and” — (고)
두드리고
doo-deu-ree-goh
Conditional “if” — (면)
두드리면
doo-deu-ree-myuhn
Noun form — (기)
두드림
doo-deu-reem