Is grandfather cooking?
No, he isn't.
Is Pedro walking?
Yes, he is.
Are the flowers on the table?
Yes, they are.
Are the children eating?
Yes, they are.
Is Mary running?
Yes, she is.
Are the brothers fighting?
Yes, they are.
Are the bears sleeping?
No, they aren't.
Are the children playing football?
No, they aren't
Is the cat playing?
No, it isn't.
Is the dog jumping?
No, it isn't.
Is your grandmother cooking a cake?
No, she isn't.
Is the teacher sitting?
No, she isn't.
Is the computer on the desk?
Yes, it is.
Is William reading a book?
No, he isn't.
Is Susy wearing glasses?
Yes, she is.
Is Mom sleeping?
No, she isn't.