Verbseoul.
descriptive

맛없다 conjugation (mateopda, not tasting good)

To say not tasting good politely in the present tense, use 맛없어요 (mah-suhp-ssuh-yoh) · maseopsseoyo. Below is the full conjugation of 맛없다 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
맛없어
mah-suhp-ssuh
maseopsseo
맛없어요
mah-suhp-ssuh-yoh
maseopsseoyo
맛없습니다
mah-suhp-seum-nee-dah
maseoseumnida
Past
맛없었어
mah-suhp-ssuh-ssuh
maseopsseosseo
맛없었어요
mah-suhp-ssuh-ssuh-yoh
maseopsseosseoyo
맛없었습니다
mah-suhp-ssuh-sseum-nee-dah
maseopsseosseumnida
Future
맛없을 거야
mah-suhp-sseul guh-yah
maseopsseul geoya
맛없을 거예요
mah-suhp-sseul guh-yae-yoh
maseopsseul geoyeyo
맛없을 겁니다
mah-suhp-sseul guhm-nee-dah
maseopsseul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
맛없으세요
mah-suhp-sseu-sae-yoh
maseopsseuseyo
Suggestion / Let's Polite (요)
맛없어요
mah-suhp-ssuh-yoh
maseopsseoyo
Question Polite (요)
맛없어요?
mah-suhp-ssuh-yoh-?
maseopsseoyo?
Connective "and" — (고)
맛없고
mah-suhp-goh
maseogo
Conditional "if" — (면)
맛없으면
mah-suhp-sseu-myuhn
maseopsseumyeon
Progressive (고 있어요)
맛없고 있어요
mah-suhp-goh ee-ssuh-yoh
maseogo isseoyo
Want to (고 싶어요)
맛없고 싶어요
mah-suhp-goh shee-puh-yoh
maseogo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
맛없을 수 있어요
mah-suhp-sseul soo ee-ssuh-yoh
maseopsseul su isseoyo
Because / So (아/어서)
맛없어서
mah-suhp-ssuh-suh
maseopsseoseo
Noun form — (기)
맛없기
mah-suhp-gee
maseogi
Noun form — (음)
맛없음
mah-suhp-sseum
maseopsseum