Verbseoul.
regular
꿰뚫다kkwettuldato pierce, to penetrate, to see through

To say to pierce, to penetrate, to see through politely in the present tense, use 꿰뚫어요 (ggweh-ttoo-ruh-yoh). Below is the full conjugation of 꿰뚫다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
꿰뚫어
ggweh-ttoo-ruh
꿰뚫어요
ggweh-ttoo-ruh-yoh
꿰뚫습니다
ggweh-ttool-seum-nee-dah
Past
꿰뚫었어
ggweh-ttoo-ruh-ssuh
꿰뚫었어요
ggweh-ttoo-ruh-ssuh-yoh
꿰뚫었습니다
ggweh-ttoo-ruh-sseum-nee-dah
Future
꿰뚫을 거야
ggweh-ttoo-reul- -guh-yah
꿰뚫을 거예요
ggweh-ttoo-reul- -guh-yae-yoh
꿰뚫을 겁니다
ggweh-ttoo-reul- -guhm-nee-dah

Other useful forms

Command Polite (세요)
꿰뚫으세요
ggweh-ttoo-reu-sae-yoh
Suggestion / Let's Polite (요)
꿰뚫어요
ggweh-ttoo-ruh-yoh
Question Polite (요)
꿰뚫어요?
ggweh-ttoo-ruh-yoh-?
Connective “and” — (고)
꿰뚫고
ggweh-ttool-goh
Conditional “if” — (면)
꿰뚫으면
ggweh-ttoo-reu-myuhn
Noun form — (기)
꿰뚫음
ggweh-ttoo-reum