꾸준하다 Korean adjective conjugation
to be steady, to be persistent
Every form of 꾸준하다 across the four speech levels. It is 여 irregular — 하다 and every verb built on it: 하다 → 하여 → 해요.
기본형Principal parts
The four forms the dictionary prints. Every other form on this page is derived from them.
- 관형사형Modifier
- 꾸준한
- 아/어Infinitive
- 꾸준해
- -으니Since
- 꾸준하니
- 합니다Formal
- 꾸준합니다
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.
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 꾸준해요 | 꾸준합니다 | 꾸준해 | 꾸준하다 |
과거Past
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 꾸준했어요 | 꾸준했습니다 | 꾸준했어 | 꾸준했다 |
미래·추측Future & presumptive
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| -겠-Will / must be | 꾸준하겠어요 | 꾸준하겠습니다 | 꾸준하겠어 | 꾸준하겠다 |
| -을 것이다Going to | 꾸준할 거예요 | 꾸준할 것입니다 | 꾸준할 거야 | 꾸준할 것이다 |
의문Questions
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 꾸준해요? | 꾸준합니까? | 꾸준해? | 꾸준하니? |
| 과거Past | 꾸준했어요? | 꾸준했습니까? | 꾸준했어? | 꾸준했니? |
부정Negation
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 안Not (short) | 안 꾸준해요 | 안 꾸준합니다 | 안 꾸준해 | 안 꾸준하다 |
| -지 않다Not (long) | 꾸준하지 않아요 | 꾸준하지 않습니다 | 꾸준하지 않아 | 꾸준하지 않다 |
높임Honorific
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 꾸준하세요 | 꾸준하십니다 | 꾸준하셔 | 꾸준하시다 |
| 과거Past | 꾸준하셨어요 | 꾸준하셨습니다 | 꾸준하셨어 | 꾸준하셨다 |
관형사형Modifying a noun
- 현재Present
- 꾸준한
- 과거Past
- 꾸준한
- 미래Future
- 꾸준할
- 회상Used to
- 꾸준하던
연결Joining 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
문형Sentence patterns
How the dictionary says this verb is used. The numbers are slots: 1 is the subject, 2 the object.
- 1이 꾸준하다
예문In real sentences
From the dictionary, each with its translation.
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.
자주 묻는 질문Common 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.