How to say in Czech: They know what he did last year.

English
know what did last year.
Czech
Oni vědí, co dělal minulý rok.
What did he do last year?
What happened last year?
It happened last year.
He knows what they did yesterday.
When was the last time they saw each other?
They don’t know what he means by that.
Get off at the last stop.
He knows what they think.
I want to apologize for my behaviour last night.
This is the last stop.

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