얇아
yahl-ah
yaa
descriptive
얇다
To say thin (of something flat, like a book or a slice of meat) politely in the present tense, use 얇아요 (yahl-ah-yoh) · yaayo. Below is the full conjugation of 얇다 across the three tenses and three everyday speech levels.
Grammar note (descriptive): Descriptive verbs (형용사) function like adjectives in Korean and conjugate the same way as regular action verbs. They cannot take the progressive -고 있어요 or imperative forms. 좋다 (to be good) → 좋아요; 크다 (to be big) → 커요 (으-irregular).
Conjugation table
pron. = pronunciation guide · RR = Revised Romanization
| Tense | Casual (반말) | Polite (요) | Formal (합니다) |
|---|---|---|---|
| Present | 얇아요 yahl-ah-yoh yaayo | 얇습니다 yahl-seum-nee-dah yaseumnida | |
| Past | 얇았어 yahl-ah-ssuh yaasseo | 얇았어요 yahl-ah-ssuh-yoh yaasseoyo | 얇았습니다 yahl-ah-sseum-nee-dah yaasseumnida |
| Future | 얇을 거야 yahl-eul guh-yah yaeul geoya | 얇을 거예요 yahl-eul guh-yae-yoh yaeul geoyeyo | 얇을 겁니다 yahl-eul guhm-nee-dah yaeul geomnida |
Other useful forms
Honorific / Command Polite (-(으)세요)
얇으세요
yahl-eu-sae-yoh
yaeuseyo
Suggestion / Let's Polite (요)
얇아요
yahl-ah-yoh
yaayo
Question Polite (요)
얇아요?
yahl-ah-yoh-?
yaayo?
Connective "and" — (고)
얇고
yahl-goh
yago
Conditional "if" — (면)
얇으면
yahl-eu-myuhn
yaeumyeon
Progressive (고 있어요)
얇고 있어요
yahl-goh ee-ssuh-yoh
yago isseoyo
Want to (고 싶어요)
얇고 싶어요
yahl-goh shee-puh-yoh
yago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
얇을 수 있어요
yahl-eul soo ee-ssuh-yoh
yaeul su isseoyo
Because / So (아/어서)
얇아서
yahl-ah-suh
yaaseo
Noun form — (기)
얇기
yahl-gee
yagi
Noun form — (음)
얇음
yahl-eum
yaeum