잊어버리다

to forget

TOPIK 2 2급verb 동사regular 규칙Dictionary entry 단어

Principal parts

관형사형Modifier
잊어버리는
아/어Infinitive
잊어버려
-으니Since
잊어버리니
합니다Formal
잊어버립니다

Present

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 잊어버려요잊어버립니다잊어버려잊어버린다

Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 잊어버렸어요잊어버렸습니다잊어버렸어잊어버렸다

Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 잊어버리겠어요잊어버리겠습니다잊어버리겠어잊어버리겠다
-을 것이다Going to 잊어버릴 거예요잊어버릴 것입니다잊어버릴 거야잊어버릴 것이다

Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 잊어버려요?잊어버립니까?잊어버려?잊어버리니?
과거Past 잊어버렸어요?잊어버렸습니까?잊어버렸어?잊어버렸니?

Commands

해요체Polite합니다체Formal해체Casual한다체Plain
명령Do it 잊어버리세요잊어버리십시오잊어버려잊어버려라
청유Let's 잊어버려요잊어버립시다잊어버려잊어버리자

Negation

해요체Polite합니다체Formal해체Casual한다체Plain
안Not (short) 안 잊어버려요안 잊어버립니다안 잊어버려안 잊어버린다
-지 않다Not (long) 잊어버리지 않아요잊어버리지 않습니다잊어버리지 않아잊어버리지 않는다
못Cannot 못 잊어버려요못 잊어버립니다못 잊어버려못 잊어버린다

Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 잊어버리세요잊어버리십니다잊어버리셔잊어버리신다
과거Past 잊어버리셨어요잊어버리셨습니다잊어버리셨어잊어버리셨다

Modifying a noun

현재Present
잊어버리는
과거Past
잊어버린
미래Future
잊어버릴
회상Used to
잊어버리던

Joining clauses

-고and
잊어버리고
-게-ly / so that
잊어버리게
-어서so / and then
잊어버려서
-으니까since
잊어버리니까
-으면if / when
잊어버리면
-지만but
잊어버리지만
-는데and / but (setting up)
잊어버리는데
-어도even if
잊어버려도

In progress

해요체Polite합니다체Formal해체Casual한다체Plain
현재Is doing 잊어버리고 있어요잊어버리고 있습니다잊어버리고 있어잊어버리고 있다
과거Was doing 잊어버리고 있었어요잊어버리고 있었습니다잊어버리고 있었어잊어버리고 있었다

Sentence patterns

In real sentences

네가 잊어버린 줄 알았어.

I thought you'd forgotten.

왜 그 단어를 잊어버렸니?

Why have you forgotten the word?

이제 우리는 잊어버렸지만, 착륙선은 알겠네요.

Now, we forgot, but the lander knew.

하지만 5분 후에는 그가 시험봤던 사실조차 잊어버렸다.

But only five minutes later, he forgot the test had even taken place.

Common questions

How do you conjugate 잊어버리다 in Korean?

잊어버리다 (to forget) is 잊어버려요 in the polite 해요체, 잊어버립니다 in formal 합니다체, 잊어버려 in casual 반말 and 잊어버린다 in the plain written style. The past is 잊어버렸어요.

What is the past tense of 잊어버리다?

잊어버렸어요 in everyday polite speech, 잊어버렸습니다 formally. It is built from the 아/어 form 잊어버려 plus ㅆ, which is why an irregular stem shows its irregularity here.

Is 잊어버리다 a regular verb?

Yes. Its stem never changes shape: 잊어버립니다, 잊어버려, 잊어버리니 all keep 잊어버리 intact. Only the ending moves.

What TOPIK level is 잊어버리다?

2급 — TOPIK 2, elementary.

Dictionary form, meaning, sentence patterns, examples and audio from the 국립국어원 한국어기초사전, used under CC BY-SA 2.0 KR.

Conjugations are generated by this site's own engine and checked against the 9,380 forms the dictionary publishes on every build.