Is she sitting?
Yes, she is.
What is she doing?
She is sitting.
What are they doing?
They are running.
What are they doing?
They are talking.
What is he doing?
He is standing.
Are they jumping?
Yes, they are.
What are they doing?
They are jumping.
She isn't ...
sitting
He isn't ...
swimming
What is he doing?
He is swimming.
Are they jumping?
Yes, they are.
They aren't ...
jumping
They aren't ...
running
They aren't ...
talking
Is he swimming?
Yes, he is.
Is she sitting?
No, he isn't.
Are they jumping?
No, they aren't.
He isn't ...
standing
She isn't ...
walking
What is she doing?
She is walking.
Is he sitting?
No, he isn't.