"Mit csináltál tegnap?"

Translation: What were you doing yesterday?

[AcmeofEvolution]

Why is it "were you doing" instead of "did you do"? Does Hungarian make a distinction between preterite and imperfect? If so, where is that explained?

[vvsey]

No, there is no grammatical distinction, both should be accepted.

[ray.meredith]

I reported it.

[TomTomsons]

Why is "What have you done yesterday " the wrong answer?

[mizinamo]

Why is "What have you done yesterday " the wrong answer?

An expression of time such as "yesterday" is usually a signal that the present perfect tense is not appropriate.

"What did you do yesterday?" would be a correct version.

[basszus-kulcs]

What is the problem with "What did you do yesterday" ?