허약하다

weak

Principal parts

관형사형Modifier
허약한
아/어Infinitive
허약해
-으니Since
허약하니
합니다Formal
허약합니다

Present

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 허약해요허약합니다허약해허약하다

Past

해요체Polite합니다체Formal해체Casual한다체Plain
서술Statement 허약했어요허약했습니다허약했어허약했다

Future & presumptive

해요체Polite합니다체Formal해체Casual한다체Plain
-겠-Will / must be 허약하겠어요허약하겠습니다허약하겠어허약하겠다
-을 것이다Going to 허약할 거예요허약할 것입니다허약할 거야허약할 것이다

Questions

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 허약해요?허약합니까?허약해?허약하니?
과거Past 허약했어요?허약했습니까?허약했어?허약했니?

Negation

해요체Polite합니다체Formal해체Casual한다체Plain
안Not (short) 안 허약해요안 허약합니다안 허약해안 허약하다
-지 않다Not (long) 허약하지 않아요허약하지 않습니다허약하지 않아허약하지 않다

Honorific

해요체Polite합니다체Formal해체Casual한다체Plain
현재Present 허약하세요허약하십니다허약하셔허약하시다
과거Past 허약하셨어요허약하셨습니다허약하셨어허약하셨다

Modifying a noun

현재Present
허약한
과거Past
허약한
미래Future
허약할
회상Used to
허약하던

Joining clauses

-고and
허약하고
-게-ly / so that
허약하게
-어서so / and then
허약해서
-으니까since
허약하니까
-으면if / when
허약하면
-지만but
허약하지만
-는데and / but (setting up)
허약한데
-어도even if
허약해도

Sentence patterns

In real sentences

어린이 결혼은 빈곤, 허약한 건강, 교육 부족의 악순환을 연장시킵니다.

Child marriages prolong the vicious cycle of poverty, poor health, lack of education.

인간은 너무 허약해

Human beings are so fragile.

아이가 정말 허약해요

The child is very Weak.

허약한 자에게는 독이다

Are the poison of the weak.

Common questions

How do you conjugate 허약하다 in Korean?

허약하다 (weak) is 허약해요 in the polite 해요체, 허약합니다 in formal 합니다체, 허약해 in casual 반말 and 허약하다 in the plain written style. The past is 허약했어요.

What is the past tense of 허약하다?

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

Is 허약하다 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 허약하여 and 허약하니 but unchanged in 허약합니다.

What TOPIK level is 허약하다?

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.