Verbseoul.
하다 verb

착석하다 conjugation (chakseokhada, to take a seat)

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

Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
착석해
chahg-ssuh-kae
chaksseokae
착석해요
chahg-ssuh-kae-yoh
chaksseokaeyo
착석합니다
chahg-ssuh-kahm-nee-dah
chaksseokamnida
Past
착석했어
chahg-ssuh-kae-ssuh
chaksseokaesseo
착석했어요
chahg-ssuh-kae-ssuh-yoh
chaksseokaesseoyo
착석했습니다
chahg-ssuh-kae-sseum-nee-dah
chaksseokaesseumnida
Future
착석할 거야
chahg-ssuh-kahl guh-yah
chaksseokal geoya
착석할 거예요
chahg-ssuh-kahl guh-yae-yoh
chaksseokal geoyeyo
착석할 겁니다
chahg-ssuh-kahl guhm-nee-dah
chaksseokal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
착석하세요
chahg-ssuh-kah-sae-yoh
chaksseokaseyo
Suggestion / Let's Polite (요)
착석해요
chahg-ssuh-kae-yoh
chaksseokaeyo
Question Polite (요)
착석해요?
chahg-ssuh-kae-yoh-?
chaksseokaeyo?
Connective "and" — (고)
착석하고
chahg-ssuh-kah-goh
chaksseokago
Conditional "if" — (면)
착석하면
chahg-ssuh-kah-myuhn
chaksseokamyeon
Progressive (고 있어요)
착석하고 있어요
chahg-ssuh-kah-goh ee-ssuh-yoh
chaksseokago isseoyo
Want to (고 싶어요)
착석하고 싶어요
chahg-ssuh-kah-goh shee-puh-yoh
chaksseokago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
착석할 수 있어요
chahg-ssuh-kahl soo ee-ssuh-yoh
chaksseokal su isseoyo
Because / So (아/어서)
착석해서
chahg-ssuh-kae-suh
chaksseokaeseo
Noun form — (기)
착석하기
chahg-ssuh-kah-gee
chaksseokagi
Noun form — (음)
착석함
chahg-ssuh-kahm
chaksseokam