KOREAN VERB

잘못하다

to do wrong, to get it wrong, to be at fault

Conjugation

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

Say it firstHide the forms and test yourself

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

Form	Polite	Formal	Casual
AffirmativeI do wrong
NegativeI don’t do wrong

과거 · finished actions: 갔어요, 갔습니다, 갔어

Form	Polite	Formal	Casual
AffirmativeI did wrong
NegativeI didn’t do wrong

미래 · plans and guesses: -(으)ㄹ 거예요

Form	Polite	Formal	Casual
AffirmativeI will do wrong
NegativeI won’t do wrong

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

Form	Polite	Formal
PresentI do wrong (respectfully)
PastI did wrong (respectfully)
FutureI will do wrong (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

사람은 누구나 살면서 가끔 잘못해요.

Everyone gets things wrong sometimes in life.
Past

제가 잘못했어요, 다시는 안 그럴게요.

It was my fault, I won't do it again.
Future

서두르면 또 잘못할 거예요, 천천히 하세요.

If you rush, you'll get it wrong again, take your time.
Honorific

이번에는 부장님이 잘못하신 것 같아요.

I think this time the manager was the one at fault.
Connectives

계산을 잘못해서 돈을 더 냈어요.

I got the sum wrong, so I paid too much.
Requests and commands

이번에는 절대 잘못하지 마, 마지막 기회야.

Don't get it wrong this time, it's your last chance.

제가 잘못했어요 is "it was my fault, sorry". 잘못 before another verb means doing it wrongly: 잘못 들었어요, I misheard.

The lessons that teach a form of it, and how they say it.

둘 다 잘못해요. You're both at fault.
제가 잘못했어요. 죄송해요. I was wrong. I'm sorry.
또 잘못하면 내일은 네가 설거지할 거야. If you get it wrong again, tomorrow you'll do the dishes.

Fluency Level 2 · 주차장에서 제가 말을 잘못했어요.

The same pattern, on other verbs: 하다 verb.