Verbseoul.
하다 verb
착석하다chakseokhadato take a seat

To say to take a seat politely in the present tense, use 착석해요 (chahg-ssuh-kae-yoh). Below is the full conjugation of 착석하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
착석해
chahg-ssuh-kae
착석해요
chahg-ssuh-kae-yoh
착석합니다
chahg-ssuh-kahm-nee-dah
Past
착석했어
chahg-ssuh-kae-ssuh
착석했어요
chahg-ssuh-kae-ssuh-yoh
착석했습니다
chahg-ssuh-kae-sseum-nee-dah
Future
착석할 거야
chahg-ssuh-kahl- -guh-yah
착석할 거예요
chahg-ssuh-kahl- -guh-yae-yoh
착석할 겁니다
chahg-ssuh-kahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
착석하세요
chahg-ssuh-kah-sae-yoh
Suggestion / Let's Polite (요)
착석해요
chahg-ssuh-kae-yoh
Question Polite (요)
착석해요?
chahg-ssuh-kae-yoh-?
Connective “and” — (고)
착석하고
chahg-ssuh-kah-goh
Conditional “if” — (면)
착석하면
chahg-ssuh-kah-myuhn
Noun form — (기)
착석함
chahg-ssuh-kahm