Verbseoul.
regular
여닫다yeodatdato open and shut (door, window, etc.)

To say to open and shut (door, window, etc.) politely in the present tense, use 여닫아요 (yuh-dah-dah-yoh). Below is the full conjugation of 여닫다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
여닫아
yuh-dah-dah
여닫아요
yuh-dah-dah-yoh
여닫습니다
yuh-daht-seum-nee-dah
Past
여닫았어
yuh-dah-dah-ssuh
여닫았어요
yuh-dah-dah-ssuh-yoh
여닫았습니다
yuh-dah-dah-sseum-nee-dah
Future
여닫을 거야
yuh-dah-deul- -guh-yah
여닫을 거예요
yuh-dah-deul- -guh-yae-yoh
여닫을 겁니다
yuh-dah-deul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
여닫으세요
yuh-dah-deu-sae-yoh
Suggestion / Let's Polite (요)
여닫아요
yuh-dah-dah-yoh
Question Polite (요)
여닫아요?
yuh-dah-dah-yoh-?
Connective “and” — (고)
여닫고
yuh-daht-goh
Conditional “if” — (면)
여닫으면
yuh-dah-deu-myuhn
Noun form — (기)
여닫음
yuh-dah-deum