Can it fly?
Yes, it can.
Can a fish swim?
Yes, it can.
Can a pig fly?
No, it can't.
Can a cow read a book?
No, it can't.
Can a dog jump?
Yes, it can.
Can he run?
Yes, he can.
Can a snake run?
No, it can't.
Can a bird sing?
Yes, it can.
Can a chicken swim?
No, it can't.
Can a cat run?
Yes, it can.
Can he fly?
No, he can't.
"Can they sing?"
No, they can't.
Can a sheep fly?
No, it can't.