Verbseoul.
ㄹ stem (adj)

거칠다 conjugation (geochilda, to be rough or coarse in texture)

To say to be rough or coarse in texture politely in the present tense, use 거칠어요 (guh-chee-ruh-yoh) · geochireoyo. Below is the full conjugation of 거칠다 across the three tenses and three everyday speech levels.

Grammar note (ㄹ stem (adj)): ㄹ-stem adjectives follow the same pattern as ㄹ-stem verbs: the ㄹ is kept before vowel suffixes and drops before ㄴ, ㅂ, and 습니다. 길다 (to be long) → 길어요, 긴, 깁니다. 멀다 (to be far) → 멀어요, 먼, 멉니다. See all ㄹ-stem verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
거칠어
guh-chee-ruh
geochireo
거칠어요
guh-chee-ruh-yoh
geochireoyo
거칩니다
guh-cheem-nee-dah
geochimnida
Past
거칠었어
guh-chee-ruh-ssuh
geochireosseo
거칠었어요
guh-chee-ruh-ssuh-yoh
geochireosseoyo
거칠었습니다
guh-chee-ruh-sseum-nee-dah
geochireosseumnida
Future
거칠 거야
guh-cheel guh-yah
geochil geoya
거칠 거예요
guh-cheel guh-yae-yoh
geochil geoyeyo
거칠 겁니다
guh-cheel guhm-nee-dah
geochil geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
거치세요
guh-chee-sae-yoh
geochiseyo
Suggestion / Let's Polite (요)
거칠어요
guh-chee-ruh-yoh
geochireoyo
Question Polite (요)
거칠어요?
guh-chee-ruh-yoh-?
geochireoyo?
Connective "and" — (고)
거칠고
guh-cheel-goh
geochilgo
Conditional "if" — (면)
거칠면
guh-cheel-myuhn
geochilmyeon
Progressive (고 있어요)
거칠고 있어요
guh-cheel-goh ee-ssuh-yoh
geochilgo isseoyo
Want to (고 싶어요)
거칠고 싶어요
guh-cheel-goh shee-puh-yoh
geochilgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
거칠 수 있어요
guh-cheel soo ee-ssuh-yoh
geochil su isseoyo
Because / So (아/어서)
거칠어서
guh-chee-ruh-suh
geochireoseo
Noun form — (기)
거칠기
guh-cheel-gee
geochilgi
Noun form — (음)
거칢
guh-cheem
geochim