확고하다 Korean adjective conjugation

to be firm, to be staunch, to be adamant

Every form of 확고하다 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
확고한
아/어Infinitive
확고해
-으니Since
확고하니
합니다Formal
확고합니다

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 확고해요확고합니다확고해확고하다

과거Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 확고했어요확고했습니다확고했어확고했다

미래·추측Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 확고하겠어요확고하겠습니다확고하겠어확고하겠다
-을 것이다Going to 확고할 거예요확고할 것입니다확고할 거야확고할 것이다

의문Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 확고해요?확고합니까?확고해?확고하니?
과거Past 확고했어요?확고했습니까?확고했어?확고했니?

부정Negation

해요체Polite합니다체Formal해체Casual한다체Plain
Not (short) 안 확고해요안 확고합니다안 확고해안 확고하다
-지 않다Not (long) 확고하지 않아요확고하지 않습니다확고하지 않아확고하지 않다

높임Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 확고하세요확고하십니다확고하셔확고하시다
과거Past 확고하셨어요확고하셨습니다확고하셨어확고하셨다

관형사형Modifying a noun

현재Present
확고한
과거Past
확고한
미래Future
확고할
회상Used to
확고하던

연결Joining clauses

-고and
확고하고
-게-ly / so that
확고하게
-어서so / and then
확고해서
-으니까since
확고하니까
-으면if / when
확고하면
-지만but
확고하지만
-는데and / but (setting up)
확고한데
-어도even if
확고해도

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.

볼머 원장님도 그에 대해 확고한 입장이시구요

Director Volmer is quite firm on that.

그녀는 확고하고, 집중하고 있었습니다.

She was intent and focused.

겁이 났어요. 하지만 제 생각은 확고했습니다.

And it was daunting, but I was determined.

미국은 이제 공식적으로 확고하게 에티오피아의 권위주의 정권을 지지한다.

The US is now firmly and officially endorsing authoritarianism in Ethiopia

자주 묻는 질문Common questions

How do you conjugate 확고하다 in Korean?

확고하다 (to be firm, to be staunch, to be adamant) is 확고해요 in the polite 해요체, 확고합니다 in formal 합니다체, 확고해 in casual 반말 and 확고하다 in the plain written style. The past is 확고했어요.

What is the past tense of 확고하다?

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

Is 확고하다 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 확고하여 and 확고하니 but unchanged in 확고합니다.

What TOPIK level is 확고하다?

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.