She's swimming now.
She doesn't swim now.
Is she swimming now?
I am reading a book at the moment.
I am not reading the book at the moment.
Are they reading a book at the moment?
She's swimming now.
She's not swimming now.
Is she swimming now?
I am reading a book at the moment.
I am not reading the book at the moment.
Are they reading a book at the moment?