Can Jane sing? Yes, she can. No, she can't.
Can the children sing? Yes, they can. No, they can't.
Can Nina paint? Yes, she can. No, she can't.
Can Robert skate? Yes, he can. No, he can't.
Can my father drive a car? Yes, he can. No, he can't.
Can Dan ride a bike? Yes, he can. No, he can't.
can't = can not