Verbseoul.
descriptive

궂다 conjugation (gutda-2, to be bad)

To say to be bad politely in the present tense, use 궂어요 (goo-chuh-yoh) · gujeoyo. Below is the full conjugation of 궂다 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

TenseCasual (반말)Polite (요)Formal (합니다)
Present
궂어
goo-chuh
gujeo
궂어요
goo-chuh-yoh
gujeoyo
궂습니다
goot-seum-nee-dah
gutseumnida
Past
궂었어
goo-chuh-ssuh
gujeosseo
궂었어요
goo-chuh-ssuh-yoh
gujeosseoyo
궂었습니다
goo-chuh-sseum-nee-dah
gujeosseumnida
Future
궂을 거야
goo-cheul guh-yah
gujeul geoya
궂을 거예요
goo-cheul guh-yae-yoh
gujeul geoyeyo
궂을 겁니다
goo-cheul guhm-nee-dah
gujeul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
궂으세요
goo-cheu-sae-yoh
gujeuseyo
Suggestion / Let's Polite (요)
궂어요
goo-chuh-yoh
gujeoyo
Question Polite (요)
궂어요?
goo-chuh-yoh-?
gujeoyo?
Connective "and" — (고)
궂고
goot-goh
gutgo
Conditional "if" — (면)
궂으면
goo-cheu-myuhn
gujeumyeon
Progressive (고 있어요)
궂고 있어요
goot-goh ee-ssuh-yoh
gutgo isseoyo
Want to (고 싶어요)
궂고 싶어요
goot-goh shee-puh-yoh
gutgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
궂을 수 있어요
goo-cheul soo ee-ssuh-yoh
gujeul su isseoyo
Because / So (아/어서)
궂어서
goo-chuh-suh
gujeoseo
Noun form — (기)
궂기
goot-gee
gutgi
Noun form — (음)
궂음
goo-cheum
gujeum