I ...
I can swim.
I ...
I can't swim.
He ...
He can ride a bike.
He ...
He can't ride a bike.
She ...
She can play the piano.
He ...
He can't play the piano.
She ...
She can sing.
He ...
He can ride a horse.
He ...
He can't ride a horse.
I ...
I can jump.
I ...
I can run.
I ...
I can't run (jump).
She ...
She can't play the guitar.
He ...
He can play the guitar.
He ...
He can't sing.
He ...
He can't play tennis.
