Verbseoul.
하다 verb
깜빡하다kkamppakhadato flicker, to waver

To say to flicker, to waver politely in the present tense, use 깜빡해요 (ggahm-bbah-kae-yoh). Below is the full conjugation of 깜빡하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
깜빡해
ggahm-bbah-kae
깜빡해요
ggahm-bbah-kae-yoh
깜빡합니다
ggahm-bbah-kahm-nee-dah
Past
깜빡했어
ggahm-bbah-kae-ssuh
깜빡했어요
ggahm-bbah-kae-ssuh-yoh
깜빡했습니다
ggahm-bbah-kae-sseum-nee-dah
Future
깜빡할 거야
ggahm-bbah-kahl- -guh-yah
깜빡할 거예요
ggahm-bbah-kahl- -guh-yae-yoh
깜빡할 겁니다
ggahm-bbah-kahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
깜빡하세요
ggahm-bbah-kah-sae-yoh
Suggestion / Let's Polite (요)
깜빡해요
ggahm-bbah-kae-yoh
Question Polite (요)
깜빡해요?
ggahm-bbah-kae-yoh-?
Connective “and” — (고)
깜빡하고
ggahm-bbah-kah-goh
Conditional “if” — (면)
깜빡하면
ggahm-bbah-kah-myuhn
Noun form — (기)
깜빡함
ggahm-bbah-kahm