갑작스럽다 Korean adjective conjugation
to be sudden, abrupt
Every form of 갑작스럽다 across the four speech levels. It is ㅂ irregular — ㅂ becomes 우 before a vowel: 춥다 → 추워요.
기본형Principal parts
The four forms the dictionary prints. Every other form on this page is derived from them.
- 관형사형Modifier
- 갑작스러운
- 아/어Infinitive
- 갑작스러워
- -으니Since
- 갑작스러우니
- 합니다Formal
- 갑작스럽습니다
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 | 갑작스러워요 | 갑작스럽습니다 | 갑작스러워 | 갑작스럽다 |
과거Past
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 서술Statement | 갑작스러웠어요 | 갑작스러웠습니다 | 갑작스러웠어 | 갑작스러웠다 |
미래·추측Future & presumptive
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| -겠-Will / must be | 갑작스럽겠어요 | 갑작스럽겠습니다 | 갑작스럽겠어 | 갑작스럽겠다 |
| -을 것이다Going to | 갑작스러울 거예요 | 갑작스러울 것입니다 | 갑작스러울 거야 | 갑작스러울 것이다 |
의문Questions
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 갑작스러워요? | 갑작스럽습니까? | 갑작스러워? | 갑작스러우니? |
| 과거Past | 갑작스러웠어요? | 갑작스러웠습니까? | 갑작스러웠어? | 갑작스러웠니? |
부정Negation
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 안Not (short) | 안 갑작스러워요 | 안 갑작스럽습니다 | 안 갑작스러워 | 안 갑작스럽다 |
| -지 않다Not (long) | 갑작스럽지 않아요 | 갑작스럽지 않습니다 | 갑작스럽지 않아 | 갑작스럽지 않다 |
높임Honorific
| 해요체Polite | 합니다체Formal | 해체Casual | 한다체Plain | |
|---|---|---|---|---|
| 현재Present | 갑작스러우세요 | 갑작스러우십니다 | 갑작스러우셔 | 갑작스러우시다 |
| 과거Past | 갑작스러우셨어요 | 갑작스러우셨습니다 | 갑작스러우셨어 | 갑작스러우셨다 |
관형사형Modifying a noun
- 현재Present
- 갑작스러운
- 과거Past
- 갑작스러운
- 미래Future
- 갑작스러울
- 회상Used to
- 갑작스럽던
연결Joining clauses
- -고and
- 갑작스럽고
- -게-ly / so that
- 갑작스럽게
- -어서so / and then
- 갑작스러워서
- -으니까since
- 갑작스러우니까
- -으면if / when
- 갑작스러우면
- -지만but
- 갑작스럽지만
- -는데and / but (setting up)
- 갑작스러운데
- -어도even if
- 갑작스러워도
문형Sentence patterns
How the dictionary says this verb is used. The numbers are slots: 1 is the subject, 2 the object.
- 1이 갑작스럽다
예문In real sentences
From the dictionary, each with its translation.
갑작스럽게도 이것은 더 이상 이론이 아니게 되었지요.
All of a sudden, this isn't theory anymore.
누군가는 세상을 떠난 사랑했던 이에 대해 이야기했습니다. 빠르고 갑작스럽게요.
Someone talked about a loved one who had passed away quickly and unexpectedly.
모든 게 너무 갑작스러웠어요
It was just so sudden.
갑작스런 행동을 안 하려는 것뿐이야
Stop saying yes. Try not to make any sudden movements.
자주 묻는 질문Common questions
How do you conjugate 갑작스럽다 in Korean?
갑작스럽다 (to be sudden, abrupt) is 갑작스러워요 in the polite 해요체, 갑작스럽습니다 in formal 합니다체, 갑작스러워 in casual 반말 and 갑작스럽다 in the plain written style. The past is 갑작스러웠어요.
What is the past tense of 갑작스럽다?
갑작스러웠어요 in everyday polite speech, 갑작스러웠습니다 formally. It is built from the 아/어 form 갑작스러워 plus ㅆ, which is why an irregular stem shows its irregularity here.
Is 갑작스럽다 irregular?
Yes — it is ㅂ irregular (ㅂ 불규칙). ㅂ becomes 우 before a vowel: 춥다 → 추워요. That is why the stem looks different in 갑작스러워 and 갑작스러우니 but unchanged in 갑작스럽습니다.
What TOPIK level is 갑작스럽다?
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.