1.I can sing
can I sing?
I can’t sing.
2.She can dance
can she dance?
She can’t dance
3.We can ride a bike
can we ride a bike?
We can’t ride a bike
4.They can go to the park
can they go to the park
They can’t go to the park
5.You can come in.
can you come in?
You can’t come in.