쾌활하다 Korean adjective conjugation
cheerful
Every form of 쾌활하다 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
- 쾌활한
- 아/어Infinitive
- 쾌활해
- -으니Since
- 쾌활하니
- 합니다Formal
- 쾌활합니다
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 | 쾌활해요 | 쾌활합니다 | 쾌활해 | 쾌활하다 |
과거Past
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 쾌활했어요 | 쾌활했습니다 | 쾌활했어 | 쾌활했다 |
미래·추측Future & presumptive
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| -겠-Will / must be | 쾌활하겠어요 | 쾌활하겠습니다 | 쾌활하겠어 | 쾌활하겠다 |
| -을 것이다Going to | 쾌활할 거예요 | 쾌활할 것입니다 | 쾌활할 거야 | 쾌활할 것이다 |
의문Questions
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 쾌활해요? | 쾌활합니까? | 쾌활해? | 쾌활하니? |
| 과거Past | 쾌활했어요? | 쾌활했습니까? | 쾌활했어? | 쾌활했니? |
부정Negation
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 안Not (short) | 안 쾌활해요 | 안 쾌활합니다 | 안 쾌활해 | 안 쾌활하다 |
| -지 않다Not (long) | 쾌활하지 않아요 | 쾌활하지 않습니다 | 쾌활하지 않아 | 쾌활하지 않다 |
높임Honorific
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 쾌활하세요 | 쾌활하십니다 | 쾌활하셔 | 쾌활하시다 |
| 과거Past | 쾌활하셨어요 | 쾌활하셨습니다 | 쾌활하셨어 | 쾌활하셨다 |
관형사형Modifying a noun
- 현재Present
- 쾌활한
- 과거Past
- 쾌활한
- 미래Future
- 쾌활할
- 회상Used to
- 쾌활하던
연결Joining clauses
- -고and
- 쾌활하고
- -게-ly / so that
- 쾌활하게
- -어서so / and then
- 쾌활해서
- -으니까since
- 쾌활하니까
- -으면if / when
- 쾌활하면
- -지만but
- 쾌활하지만
- -는데and / but (setting up)
- 쾌활한데
- -어도even if
- 쾌활해도
문형Sentence patterns
How the dictionary says this verb is used. The numbers are slots: 1 is the subject, 2 the object.
- 1이 쾌활하다
예문In real sentences
From the dictionary, each with its translation.
언제나 정말 쾌활해요
He's always so cheerful.
저는 닉을 생각했고 그의 쾌활함을 생각했습니다.
I thought of Nick, and I thought of his resilience.
청이라고 합니다. 아마 세상에서 가장 쾌활한 사람일 거에요.
Her name is Chung, and Chung is one of the most upbeat people you will ever meet.
사교적이고 쾌활한 여자지
She is the life of the party.
자주 묻는 질문Common questions
How do you conjugate 쾌활하다 in Korean?
쾌활하다 (cheerful) is 쾌활해요 in the polite 해요체, 쾌활합니다 in formal 합니다체, 쾌활해 in casual 반말 and 쾌활하다 in the plain written style. The past is 쾌활했어요.
What is the past tense of 쾌활하다?
쾌활했어요 in everyday polite speech, 쾌활했습니다 formally. It is built from the 아/어 form 쾌활하여 plus ㅆ, which is why an irregular stem shows its irregularity here.
Is 쾌활하다 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 쾌활하여 and 쾌활하니 but unchanged in 쾌활합니다.
What TOPIK level is 쾌활하다?
5급 — TOPIK 5, advanced.
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.