Grammar Struktur

I got stuck with this, any body can help me pls?

A. When you will return this book?
I think the structure of this sentence is Future tense where the formulas is:S+will/shall+v1 +object.So I in my opinion is A right .

B. When will you to return this book?

Regards, Yordanus

I think the formula is right and as well as your chosen answer. =)

yup,Thank you very much for your help,The reason why i’m asked about that because someone told me that B is right,therefore i tried to find an other opinion.

Hi Yordanus,

Actually, neither of your sentences are correct.

The correct structure is “When will you return this book?”