Hello Moustafa,
I have found a German grammar in English at last.
Please let me know your personal e-mail adress for it's a private exemplar, I will share this one only to respect copyright. I do own no other copy.
The book is in epub-format, so you need an ebook-reader software to use it.
See a brief survey of apps here: ****://tinyurl.***/zwcn7tk
Regards, Jan