How to say in Czech: Is this his first time here?

English
Is this first time here?
Czech
Je tady poprvé?
What is his first name?
Did he forget his first name?
Do I know his first name?
He does not know his first name.
He forgot his first name.
He knows his first name.
He told her his first name.
It is the first door on the left.
What is our first name?
Tell me your first name.

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