Verbseoul.
regular
반짝이다banjjakidato glitter, sparkle, twinkle

To say to glitter, sparkle, twinkle politely in the present tense, use 반짝여요 (bahn-jjah-gyuh-yoh). Below is the full conjugation of 반짝이다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
반짝여
bahn-jjah-gyuh
반짝여요
bahn-jjah-gyuh-yoh
반짝입니다
bahn-jjah-geem-nee-dah
Past
반짝였어
bahn-jjah-gyuh-ssuh
반짝였어요
bahn-jjah-gyuh-ssuh-yoh
반짝였습니다
bahn-jjah-gyuh-sseum-nee-dah
Future
반짝일 거야
bahn-jjah-geel- -guh-yah
반짝일 거예요
bahn-jjah-geel- -guh-yae-yoh
반짝일 겁니다
bahn-jjah-geel- -guhm-nee-dah

Other useful forms

Command Polite (세요)
반짝이세요
bahn-jjah-gee-sae-yoh
Suggestion / Let's Polite (요)
반짝여요
bahn-jjah-gyuh-yoh
Question Polite (요)
반짝여요?
bahn-jjah-gyuh-yoh-?
Connective “and” — (고)
반짝이고
bahn-jjah-gee-goh
Conditional “if” — (면)
반짝이면
bahn-jjah-gee-myuhn
Noun form — (기)
반짝임
bahn-jjah-geem