꾸준하다

to be steady, to be persistent

Principal parts

관형사형Modifier
꾸준한
아/어Infinitive
꾸준해
-으니Since
꾸준하니
합니다Formal
꾸준합니다

Present

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 꾸준해요꾸준합니다꾸준해꾸준하다

Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 꾸준했어요꾸준했습니다꾸준했어꾸준했다

Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 꾸준하겠어요꾸준하겠습니다꾸준하겠어꾸준하겠다
-을 것이다Going to 꾸준할 거예요꾸준할 것입니다꾸준할 거야꾸준할 것이다

Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 꾸준해요?꾸준합니까?꾸준해?꾸준하니?
과거Past 꾸준했어요?꾸준했습니까?꾸준했어?꾸준했니?

Negation

해요체Polite합니다체Formal해체Casual한다체Plain
안Not (short) 안 꾸준해요안 꾸준합니다안 꾸준해안 꾸준하다
-지 않다Not (long) 꾸준하지 않아요꾸준하지 않습니다꾸준하지 않아꾸준하지 않다

Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 꾸준하세요꾸준하십니다꾸준하셔꾸준하시다
과거Past 꾸준하셨어요꾸준하셨습니다꾸준하셨어꾸준하셨다

Modifying a noun

현재Present
꾸준한
과거Past
꾸준한
미래Future
꾸준할
회상Used to
꾸준하던

Joining clauses

-고and
꾸준하고
-게-ly / so that
꾸준하게
-어서so / and then
꾸준해서
-으니까since
꾸준하니까
-으면if / when
꾸준하면
-지만but
꾸준하지만
-는데and / but (setting up)
꾸준한데
-어도even if
꾸준해도

Sentence patterns

In real sentences

저는 2003년에 일을 시작했습니다. 처음 몇 년 동안은 학습 곡선이 꾸준하게 향상되었습니다.

I'd entered practice in 2003, and for the first several years, it was just this steady, upward improvement in my learning curve.

자, 이겁니다. 꾸준한 선의가 좋은 우정을 만든다.

So it goes like this: sustained goodwill creates friendship.

당신의 눈은 언제나처럼 꾸준한이었습니다;

That your eye was as steady as ever;

이 영역에서는 꾸준한 수준의 수행이 가능하다.

In this zone, a steady level of performance is possible.

Common questions

How do you conjugate 꾸준하다 in Korean?

꾸준하다 (to be steady, to be persistent) is 꾸준해요 in the polite 해요체, 꾸준합니다 in formal 합니다체, 꾸준해 in casual 반말 and 꾸준하다 in the plain written style. The past is 꾸준했어요.

What is the past tense of 꾸준하다?

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

Is 꾸준하다 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 꾸준하여 and 꾸준하니 but unchanged in 꾸준합니다.

What TOPIK level is 꾸준하다?

4급 — TOPIK 4, upper intermediate.

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.