방대하다 Korean adjective conjugation

to be vast, to be enormous, to be massive

Every form of 방대하다 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
방대한
아/어Infinitive
방대해
-으니Since
방대하니
합니다Formal
방대합니다

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 방대해요방대합니다방대해방대하다

과거Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 방대했어요방대했습니다방대했어방대했다

미래·추측Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 방대하겠어요방대하겠습니다방대하겠어방대하겠다
-을 것이다Going to 방대할 거예요방대할 것입니다방대할 거야방대할 것이다

의문Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 방대해요?방대합니까?방대해?방대하니?
과거Past 방대했어요?방대했습니까?방대했어?방대했니?

부정Negation

해요체Polite합니다체Formal해체Casual한다체Plain
Not (short) 안 방대해요안 방대합니다안 방대해안 방대하다
-지 않다Not (long) 방대하지 않아요방대하지 않습니다방대하지 않아방대하지 않다

높임Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 방대하세요방대하십니다방대하셔방대하시다
과거Past 방대하셨어요방대하셨습니다방대하셨어방대하셨다

관형사형Modifying a noun

현재Present
방대한
과거Past
방대한
미래Future
방대할
회상Used to
방대하던

연결Joining clauses

-고and
방대하고
-게-ly / so that
방대하게
-어서so / and then
방대해서
-으니까since
방대하니까
-으면if / when
방대하면
-지만but
방대하지만
-는데and / but (setting up)
방대한데
-어도even if
방대해도

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.

방대하거든요 - 그럼 나중에 얘기하지

Then we'll have to talk later.

이 야기되는 구성의 수준은 방대합니다.

And the level of construction that occurs is massive.

옛 사람이 갖지 못한 정보는 매우 방대했어.

The information the ancients didn’t have was very voluminous.

방대한 양의 학습 사례죠.

That's a lot of training examples.

자주 묻는 질문Common questions

How do you conjugate 방대하다 in Korean?

방대하다 (to be vast, to be enormous, to be massive) is 방대해요 in the polite 해요체, 방대합니다 in formal 합니다체, 방대해 in casual 반말 and 방대하다 in the plain written style. The past is 방대했어요.

What is the past tense of 방대하다?

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

Is 방대하다 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 방대하여 and 방대하니 but unchanged in 방대합니다.

What TOPIK level is 방대하다?

It carries no TOPIK grade. That is a fact about the published word lists rather than about the word — it conjugates by exactly the same rules as everything else.

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.