Verbseoul.
descriptive
같잖다gatjandato be insignificant

To say to be insignificant politely in the present tense, use 같잖아요 (gaht-chahn-ah-yoh). Below is the full conjugation of 같잖다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
같잖아
gaht-chahn-ah
같잖아요
gaht-chahn-ah-yoh
같잖습니다
gaht-chahn-seum-nee-dah
Past
같잖았어
gaht-chahn-ah-ssuh
같잖았어요
gaht-chahn-ah-ssuh-yoh
같잖았습니다
gaht-chahn-ah-sseum-nee-dah
Future
같잖을 거야
gaht-chahn-eul- -guh-yah
같잖을 거예요
gaht-chahn-eul- -guh-yae-yoh
같잖을 겁니다
gaht-chahn-eul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
같잖으세요
gaht-chahn-eu-sae-yoh
Suggestion / Let's Polite (요)
같잖아요
gaht-chahn-ah-yoh
Question Polite (요)
같잖아요?
gaht-chahn-ah-yoh-?
Connective “and” — (고)
같잖고
gaht-chahn-goh
Conditional “if” — (면)
같잖으면
gaht-chahn-eu-myuhn
Noun form — (기)
같잖음
gaht-chahn-eum