Verbseoul.
하다 verb (adj)

침착하다 conjugation (chimchakhada, calm, composed)

To say calm, composed politely in the present tense, use 침착해요 (cheem-chah-kae-yoh) · chimchakaeyo. Below is the full conjugation of 침착하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb (adj)): 하다 adjectives use the same verb 하다 as a suffix to turn descriptive nouns into predicates (행복하다 = to be happy). They conjugate identically to 하다 verbs: the 하 contracts before -아/-어 suffixes to give 해. 행복해요, 행복했어요, 행복합니다. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
침착해
cheem-chah-kae
chimchakae
침착해요
cheem-chah-kae-yoh
chimchakaeyo
침착합니다
cheem-chah-kahm-nee-dah
chimchakamnida
Past
침착했어
cheem-chah-kae-ssuh
chimchakaesseo
침착했어요
cheem-chah-kae-ssuh-yoh
chimchakaesseoyo
침착했습니다
cheem-chah-kae-sseum-nee-dah
chimchakaesseumnida
Future
침착할 거야
cheem-chah-kahl guh-yah
chimchakal geoya
침착할 거예요
cheem-chah-kahl guh-yae-yoh
chimchakal geoyeyo
침착할 겁니다
cheem-chah-kahl guhm-nee-dah
chimchakal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
침착하세요
cheem-chah-kah-sae-yoh
chimchakaseyo
Suggestion / Let's Polite (요)
침착해요
cheem-chah-kae-yoh
chimchakaeyo
Question Polite (요)
침착해요?
cheem-chah-kae-yoh-?
chimchakaeyo?
Connective "and" — (고)
침착하고
cheem-chah-kah-goh
chimchakago
Conditional "if" — (면)
침착하면
cheem-chah-kah-myuhn
chimchakamyeon
Progressive (고 있어요)
침착하고 있어요
cheem-chah-kah-goh ee-ssuh-yoh
chimchakago isseoyo
Want to (고 싶어요)
침착하고 싶어요
cheem-chah-kah-goh shee-puh-yoh
chimchakago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
침착할 수 있어요
cheem-chah-kahl soo ee-ssuh-yoh
chimchakal su isseoyo
Because / So (아/어서)
침착해서
cheem-chah-kae-suh
chimchakaeseo
Noun form — (기)
침착하기
cheem-chah-kah-gee
chimchakagi
Noun form — (음)
침착함
cheem-chah-kahm
chimchakam