KOREAN VERB

고민하다

to agonize, to think hard

Conjugation

Tap any form to hear it. The part that changes is in colour.

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현재 · now and habits: polite, formal and casual speech

Form	Polite	Formal	Casual
AffirmativeI agonize
NegativeI don’t agonize

과거 · finished actions: 갔어요, 갔습니다, 갔어

Form	Polite	Formal	Casual
AffirmativeI agonized
NegativeI didn’t agonize

미래 · plans and guesses: -(으)ㄹ 거예요

Form	Polite	Formal	Casual
AffirmativeI will agonize
NegativeI won’t agonize

높임말 · to or about an elder: the -시- forms

Form	Polite	Formal
PresentI agonize (respectfully)
PastI agonized (respectfully)
FutureI will agonize (respectfully)

연결 어미 · and, so, if, because, but: joining two sentences

명령형 · -(으)세요, -(으)십시오, the casual form, -지 마세요

One sentence for each tense, the way people say it.

Present

요즘 회사를 옮길지 말지 고민해요.

These days I'm agonizing over whether to change companies.
Past

어느 대학에 갈지 한 달 동안 고민했어요.

I thought hard for a month about which university to go to.
Future

이 제안은 며칠 더 고민할 거예요.

I'll think this offer over for a few more days.
Honorific

아버지는 가게를 팔지 말지 고민하세요.

My father is agonizing over whether to sell the shop.
Connectives

일주일 동안 고민하고 결국 거절했어요.

I thought about it for a week and in the end turned it down.
Requests and commands

너무 오래 고민하지 마세요, 그냥 사세요.

Don't agonize too long, just buy it.

고민 is the worry you turn over in your head: 고민이 있어요 is I've got something on my mind.

The same pattern, on other verbs: 하다 verb.