갑작스럽다

to be sudden, abrupt

Principal parts

관형사형Modifier
갑작스러운
아/어Infinitive
갑작스러워
-으니Since
갑작스러우니
합니다Formal
갑작스럽습니다

Present

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 갑작스러워요갑작스럽습니다갑작스러워갑작스럽다

Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 갑작스러웠어요갑작스러웠습니다갑작스러웠어갑작스러웠다

Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 갑작스럽겠어요갑작스럽겠습니다갑작스럽겠어갑작스럽겠다
-을 것이다Going to 갑작스러울 거예요갑작스러울 것입니다갑작스러울 거야갑작스러울 것이다

Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 갑작스러워요?갑작스럽습니까?갑작스러워?갑작스러우니?
과거Past 갑작스러웠어요?갑작스러웠습니까?갑작스러웠어?갑작스러웠니?

Negation

해요체Polite합니다체Formal해체Casual한다체Plain
안Not (short) 안 갑작스러워요안 갑작스럽습니다안 갑작스러워안 갑작스럽다
-지 않다Not (long) 갑작스럽지 않아요갑작스럽지 않습니다갑작스럽지 않아갑작스럽지 않다

Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 갑작스러우세요갑작스러우십니다갑작스러우셔갑작스러우시다
과거Past 갑작스러우셨어요갑작스러우셨습니다갑작스러우셨어갑작스러우셨다

Modifying a noun

현재Present
갑작스러운
과거Past
갑작스러운
미래Future
갑작스러울
회상Used to
갑작스럽던

Joining 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

Sentence patterns

In real sentences

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.

Common 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.