틀림없다

to be certain, to be sure

TOPIK 4 4급adjective 형용사regular 규칙Dictionary entry 단어

Principal parts

관형사형Modifier
틀림없는
아/어Infinitive
틀림없어
-으니Since
틀림없으니
합니다Formal
틀림없습니다

Present

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 틀림없어요틀림없습니다틀림없어틀림없다

Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 틀림없었어요틀림없었습니다틀림없었어틀림없었다

Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 틀림없겠어요틀림없겠습니다틀림없겠어틀림없겠다
-을 것이다Going to 틀림없을 거예요틀림없을 것입니다틀림없을 거야틀림없을 것이다

Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 틀림없어요?틀림없습니까?틀림없어?틀림없으니?
과거Past 틀림없었어요?틀림없었습니까?틀림없었어?틀림없었니?

Negation

해요체Polite합니다체Formal해체Casual한다체Plain
안Not (short) 안 틀림없어요안 틀림없습니다안 틀림없어안 틀림없다
-지 않다Not (long) 틀림없지 않아요틀림없지 않습니다틀림없지 않아틀림없지 않다

Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 틀림없으세요틀림없으십니다틀림없으셔틀림없으시다
과거Past 틀림없으셨어요틀림없으셨습니다틀림없으셨어틀림없으셨다

Modifying a noun

현재Present
틀림없는
과거Past
틀림없은
미래Future
틀림없을
회상Used to
틀림없던

Joining clauses

-고and
틀림없고
-게-ly / so that
틀림없게
-어서so / and then
틀림없어서
-으니까since
틀림없으니까
-으면if / when
틀림없으면
-지만but
틀림없지만
-는데and / but (setting up)
틀림없는데
-어도even if
틀림없어도

Sentence patterns

In real sentences

뉴욕 지하철이 프리타타를 정치적이라고 본 게 틀림없습니다.

Now clearly, frittatas are considered political by the MTA.

힘든 삶이었던 것이 틀림없다.

It had surely been a hard life.

네가 한 게 틀림없어!

It must be your doing!

대형 사고가 일어날 게 틀림없어

This is a tetanus shot waiting to happen.

Common questions

How do you conjugate 틀림없다 in Korean?

틀림없다 (to be certain, to be sure) is 틀림없어요 in the polite 해요체, 틀림없습니다 in formal 합니다체, 틀림없어 in casual 반말 and 틀림없다 in the plain written style. The past is 틀림없었어요.

What is the past tense of 틀림없다?

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

Is 틀림없다 a regular verb?

Yes. Its stem never changes shape: 틀림없습니다, 틀림없어, 틀림없으니 all keep 틀림없 intact. Only the ending moves.

What TOPIK level is 틀림없다?

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.