How to say in Czech: When is he going to pay?

English
When is going to pay?
Czech
Kdy zaplatí?
Where are you going?
When is he going to pay her?
He is going to pay.
He is going to pay her.
He is not going to pay.
Is he going to pay?
He is going home.
He will be happy to pay.
He needs to pay.
He needs to pay now.

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