Составьте 4 предложения в present continuous и каждое из них еще в отрицательной и вопросительной форме (срочно)

He is reading a book now. Is he reading a book now He isnt reading a book now.
My mother is cooking dinner. Is my mother cooking dinner My mother isnt cooking dinner.
Students are writing a test now. Are students writing a test now. Students arent writing  a test now.
I am sleeping now. Am I sleeping now. I am not sleeping now.