How to say in Czech: Do they want her mobile number?

English
Do want
Czech
Chtějí její mobilní číslo?
What is her telephone number?
Did they forget her mobile number?
Do they have her mobile number?
Do they know her mobile number?
Do they need her mobile number?
They do not have her mobile number.
They do not know her mobile number.
They do not need her mobile number.
They forgot her mobile number.
They gave her their mobile number.

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