How to say in Czech: He knows what they did yesterday.

English
knows what did yesterday.
Czech
On ví, co dělali včera.
What did he do yesterday?
What did he do yesterday evening?
He did it yesterday.
What date was it yesterday?
What happened yesterday?
He wasn’t born yesterday!
I want to apologize for my behaviour yesterday.
It happened the day before yesterday.
It was windy yesterday.
Why were you absent yesterday?

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