Verbseoul.
regular

꿰뚫다 conjugation (kkwettulda, to 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) · kkwettureoyo. Below is the full conjugation of 꿰뚫다 across the three tenses and three everyday speech levels.

Grammar note (regular): Regular verbs and adjectives conjugate predictably. Before 어-series suffixes, vowels may contract (가 + 아 → 가, 보 + 아 → 봐), but no consonant in the stem changes. If the final vowel of the stem is ㅏ or ㅗ, use 아; otherwise use 어. Consonant-final stems: 먹 + 어 → 먹어; vowel-final: 가 + 아 → 가.

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

TenseCasual (반말)Polite (요)Formal (합니다)
Present
꿰뚫어
ggweh-ttoo-ruh
kkwettureo
꿰뚫어요
ggweh-ttoo-ruh-yoh
kkwettureoyo
꿰뚫습니다
ggweh-ttool-seum-nee-dah
kkwettulseumnida
Past
꿰뚫었어
ggweh-ttoo-ruh-ssuh
kkwettureosseo
꿰뚫었어요
ggweh-ttoo-ruh-ssuh-yoh
kkwettureosseoyo
꿰뚫었습니다
ggweh-ttoo-ruh-sseum-nee-dah
kkwettureosseumnida
Future
꿰뚫을 거야
ggweh-ttoo-reul guh-yah
kkwettureul geoya
꿰뚫을 거예요
ggweh-ttoo-reul guh-yae-yoh
kkwettureul geoyeyo
꿰뚫을 겁니다
ggweh-ttoo-reul guhm-nee-dah
kkwettureul geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
꿰뚫으세요
ggweh-ttoo-reu-sae-yoh
kkwettureuseyo
Suggestion / Let's Polite (요)
꿰뚫어요
ggweh-ttoo-ruh-yoh
kkwettureoyo
Question Polite (요)
꿰뚫어요?
ggweh-ttoo-ruh-yoh-?
kkwettureoyo?
Connective "and" — (고)
꿰뚫고
ggweh-ttool-goh
kkwettulgo
Conditional "if" — (면)
꿰뚫으면
ggweh-ttoo-reu-myuhn
kkwettureumyeon
Progressive (고 있어요)
꿰뚫고 있어요
ggweh-ttool-goh ee-ssuh-yoh
kkwettulgo isseoyo
Want to (고 싶어요)
꿰뚫고 싶어요
ggweh-ttool-goh shee-puh-yoh
kkwettulgo sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
꿰뚫을 수 있어요
ggweh-ttoo-reul soo ee-ssuh-yoh
kkwettureul su isseoyo
Because / So (아/어서)
꿰뚫어서
ggweh-ttoo-ruh-suh
kkwettureoseo
Noun form — (기)
꿰뚫기
ggweh-ttool-gee
kkwettulgi
Noun form — (음)
꿰뚫음
ggweh-ttoo-reum
kkwettureum