Verbseoul.
descriptive

같잖다 conjugation (gatjanda, to be insignificant)

To say to be insignificant politely in the present tense, use 같잖아요 (gaht-chahn-ah-yoh) · gatjaayo. Below is the full conjugation of 같잖다 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
같잖아
gaht-chahn-ah
gatjaa
같잖아요
gaht-chahn-ah-yoh
gatjaayo
같잖습니다
gaht-chahn-seum-nee-dah
gatjaseumnida
Past
같잖았어
gaht-chahn-ah-ssuh
gatjaasseo
같잖았어요
gaht-chahn-ah-ssuh-yoh
gatjaasseoyo
같잖았습니다
gaht-chahn-ah-sseum-nee-dah
gatjaasseumnida
Future
같잖을 거야
gaht-chahn-eul guh-yah
gatjaeul geoya
같잖을 거예요
gaht-chahn-eul guh-yae-yoh
gatjaeul geoyeyo
같잖을 겁니다
gaht-chahn-eul guhm-nee-dah
gatjaeul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
같잖으세요
gaht-chahn-eu-sae-yoh
gatjaeuseyo
Suggestion / Let's Polite (요)
같잖아요
gaht-chahn-ah-yoh
gatjaayo
Question Polite (요)
같잖아요?
gaht-chahn-ah-yoh-?
gatjaayo?
Connective "and" — (고)
같잖고
gaht-chahn-goh
gatjago
Conditional "if" — (면)
같잖으면
gaht-chahn-eu-myuhn
gatjaeumyeon
Progressive (고 있어요)
같잖고 있어요
gaht-chahn-goh ee-ssuh-yoh
gatjago isseoyo
Want to (고 싶어요)
같잖고 싶어요
gaht-chahn-goh shee-puh-yoh
gatjago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
같잖을 수 있어요
gaht-chahn-eul soo ee-ssuh-yoh
gatjaeul su isseoyo
Because / So (아/어서)
같잖아서
gaht-chahn-ah-suh
gatjaaseo
Noun form — (기)
같잖기
gaht-chahn-gee
gatjagi
Noun form — (음)
같잖음
gaht-chahn-eum
gatjaeum