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

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

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