깨끗하다

to be clean

Principal parts

관형사형Modifier
깨끗한
아/어Infinitive
깨끗해
-으니Since
깨끗하니
합니다Formal
깨끗합니다

Present

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 깨끗해요깨끗합니다깨끗해깨끗하다

Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 깨끗했어요깨끗했습니다깨끗했어깨끗했다

Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 깨끗하겠어요깨끗하겠습니다깨끗하겠어깨끗하겠다
-을 것이다Going to 깨끗할 거예요깨끗할 것입니다깨끗할 거야깨끗할 것이다

Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 깨끗해요?깨끗합니까?깨끗해?깨끗하니?
과거Past 깨끗했어요?깨끗했습니까?깨끗했어?깨끗했니?

Negation

해요체Polite합니다체Formal해체Casual한다체Plain
안Not (short) 안 깨끗해요안 깨끗합니다안 깨끗해안 깨끗하다
-지 않다Not (long) 깨끗하지 않아요깨끗하지 않습니다깨끗하지 않아깨끗하지 않다

Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 깨끗하세요깨끗하십니다깨끗하셔깨끗하시다
과거Past 깨끗하셨어요깨끗하셨습니다깨끗하셨어깨끗하셨다

Modifying a noun

현재Present
깨끗한
과거Past
깨끗한
미래Future
깨끗할
회상Used to
깨끗하던

Joining clauses

-고and
깨끗하고
-게-ly / so that
깨끗하게
-어서so / and then
깨끗해서
-으니까since
깨끗하니까
-으면if / when
깨끗하면
-지만but
깨끗하지만
-는데and / but (setting up)
깨끗한데
-어도even if
깨끗해도

Sentence patterns

In real sentences

전 좋은 여자예요, 깨끗하다고요

I'm a good girl. Clean.

결국에는 자기 손 깨끗하자고 다른 사람을 죽게 만드는 거 아닌가?

Is it not, in the end, selfish to keep one's hands clean at the expense of another's life?

정말 깨끗하네

Well, it's very clean.

아주 깨끗해요

It's very clean.

Common questions

How do you conjugate 깨끗하다 in Korean?

깨끗하다 (to be clean) is 깨끗해요 in the polite 해요체, 깨끗합니다 in formal 합니다체, 깨끗해 in casual 반말 and 깨끗하다 in the plain written style. The past is 깨끗했어요.

What is the past tense of 깨끗하다?

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

Is 깨끗하다 irregular?

Yes — it is 여 irregular (여 불규칙). 하다 and every verb built on it: 하다 → 하여 → 해요. That is why the stem looks different in 깨끗하여 and 깨끗하니 but unchanged in 깨끗합니다.

What TOPIK level is 깨끗하다?

1급 — TOPIK 1, beginner.

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.