What is he doing?
He isn't swimming.
What is she doing?
She isn't running.
What is he doing?
He isn't cooking.
What is he playing?
He isn't playing football.
What are they doing?
They're drawing.
What is she doing?
She isn't riding a horse.
What is she doing?
She isn't writing.
What is she doing?
She's swimming.
What is he doing?
He isn't sleeping.
What is she doing?
She's singing.
What are they doing?
They're riding a bike.