How to say in Czech: Do they know Mr Novák?

English
Do know Novák?
Czech
Znají pana Nováka?
Have they seen Mr Novák anywhere?
Are you Mr Novák?
I am Mr Novák.
Is Mr Novák here?
Where is Mr Novák?
Do they know each other?
Do they know her address?
Do they know this boy?
He knows what they did last year.
He knows what they did yesterday.

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