망각하다 Korean verb conjugation

to forget (completely)

Every form of 망각하다 across the four speech levels. It is a regular stem, so the endings below attach without changing it.

기본형Principal parts

The four forms the dictionary prints. Every other form on this page is derived from them.

관형사형Modifier
망각하는
아/어Infinitive
망각하
-으니Since
망각하니
합니다Formal
망각합니다

현재Present

The tense that does the most work. 해요체 is the one to learn first — it is polite without being formal, and it is what most conversation is in.

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 망각하요망각합니다망각하망각한다

과거Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 망각핬어요망각핬습니다망각핬어망각핬다

미래·추측Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 망각하겠어요망각하겠습니다망각하겠어망각하겠다
-을 것이다Going to 망각할 거예요망각할 것입니다망각할 거야망각할 것이다

의문Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 망각하요?망각합니까?망각하?망각하니?
과거Past 망각핬어요?망각핬습니까?망각핬어?망각핬니?

명령Commands

해요체Polite합니다체Formal해체Casual한다체Plain
명령Do it 망각하세요망각하십시오망각하망각하라
청유Let's 망각하요망각합시다망각하망각하자

부정Negation

해요체Polite합니다체Formal해체Casual한다체Plain
Not (short) 안 망각하요안 망각합니다안 망각하안 망각한다
-지 않다Not (long) 망각하지 않아요망각하지 않습니다망각하지 않아망각하지 않는다
Cannot 못 망각하요못 망각합니다못 망각하못 망각한다

높임Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 망각하세요망각하십니다망각하셔망각하신다
과거Past 망각하셨어요망각하셨습니다망각하셨어망각하셨다

관형사형Modifying a noun

현재Present
망각하는
과거Past
망각한
미래Future
망각할
회상Used to
망각하던

연결Joining clauses

-고and
망각하고
-게-ly / so that
망각하게
-어서so / and then
망각하서
-으니까since
망각하니까
-으면if / when
망각하면
-지만but
망각하지만
-는데and / but (setting up)
망각하는데
-어도even if
망각하도

진행In progress

해요체Polite합니다체Formal해체Casual한다체Plain
현재Is doing 망각하고 있어요망각하고 있습니다망각하고 있어망각하고 있다
과거Was doing 망각하고 있었어요망각하고 있었습니다망각하고 있었어망각하고 있었다

문형Sentence patterns

How the dictionary says this verb is used. The numbers are slots: 1 is the subject, 2 the object.

예문In real sentences

From the dictionary, each with its translation.

책임감도 망각했습니다.

We forgot responsibility.

남자들이란 미소녀와 있으면 이성 따윈 망각하는 법이죠

Yes, men ignore reason when it comes to beautiful young women.

우리는 언제나 누군가의 삶을 바꿀 힘을 갖고 있음을 망각합니다.

We forget that the power to change someone's life is always in our hands.

그러나 미래의 자신이 현재의 자신과 동일하다는 것을 자주 망각합니다.

But we oftentimes forget that our future self is exactly the same person as our present self.

자주 묻는 질문Common questions

How do you conjugate 망각하다 in Korean?

망각하다 (to forget (completely)) is 망각하요 in the polite 해요체, 망각합니다 in formal 합니다체, 망각하 in casual 반말 and 망각한다 in the plain written style. The past is 망각핬어요.

What is the past tense of 망각하다?

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

Is 망각하다 a regular verb?

Yes. Its stem never changes shape: 망각합니다, 망각하, 망각하니 all keep 망각하 intact. Only the ending moves.

What TOPIK level is 망각하다?

It carries no TOPIK grade. That is a fact about the published word lists rather than about the word — it conjugates by exactly the same rules as everything else.

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.