타당하다 Korean adjective conjugation

to be right, to be proper, to be appropriate

Every form of 타당하다 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
타당한
아/어Infinitive
타당해
-으니Since
타당하니
합니다Formal
타당합니다

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.

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 타당해요타당합니다타당해타당하다

과거Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 타당했어요타당했습니다타당했어타당했다

미래·추측Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 타당하겠어요타당하겠습니다타당하겠어타당하겠다
-을 것이다Going to 타당할 거예요타당할 것입니다타당할 거야타당할 것이다

의문Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 타당해요?타당합니까?타당해?타당하니?
과거Past 타당했어요?타당했습니까?타당했어?타당했니?

부정Negation

해요체Polite합니다체Formal해체Casual한다체Plain
Not (short) 안 타당해요안 타당합니다안 타당해안 타당하다
-지 않다Not (long) 타당하지 않아요타당하지 않습니다타당하지 않아타당하지 않다

높임Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 타당하세요타당하십니다타당하셔타당하시다
과거Past 타당하셨어요타당하셨습니다타당하셨어타당하셨다

관형사형Modifying a noun

현재Present
타당한
과거Past
타당한
미래Future
타당할
회상Used to
타당하던

연결Joining clauses

-고and
타당하고
-게-ly / so that
타당하게
-어서so / and then
타당해서
-으니까since
타당하니까
-으면if / when
타당하면
-지만but
타당하지만
-는데and / but (setting up)
타당한데
-어도even if
타당해도

문형Sentence patterns

How the dictionary says this verb is used. The numbers are slots: 1 is the subject, 2 the object.

예문In real sentences

From the dictionary, each with its translation.

이건 1보다 작거나 같으니까 타당합니다

And that is valid because it could be less than or equal.

19년 동안 이것을 측정하는 것은 타당할까요?

So is this fair now to measure this over 19 years?

물론 타당한 이유가 있습니다.

And that makes a lot of sense.

여기에는 타당한 측면도 있습니다.

And some of it is legitimate.

자주 묻는 질문Common questions

How do you conjugate 타당하다 in Korean?

타당하다 (to be right, to be proper, to be appropriate) is 타당해요 in the polite 해요체, 타당합니다 in formal 합니다체, 타당해 in casual 반말 and 타당하다 in the plain written style. The past is 타당했어요.

What is the past tense of 타당하다?

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

Is 타당하다 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 타당하여 and 타당하니 but unchanged in 타당합니다.

What TOPIK level is 타당하다?

6급 — TOPIK 6, mastery.

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.