Is he flying a plane?
No, he isn't.
Yes, he is.
Is he driving a tractor?
No, he isn't.
Yes, he is.
Is she rowing a boat?
Yes, she is.
No, she isn't.
Is she riding a bike?
No, she isn't.
Yes, she is.
Are they riding motorbikes?
Yes, they are
No, they aren't.
Is it driving a lorry?
Yes, it is.
No, is isn't.
Are they rowing a boat?
Yes, they are.
No, they aren't.
Are they riding horses?
Yes, they are.
No, they aren't.