1 I can go to the party tonight.
Can I go to the party tonight?
I can't go to the party tonight.
2 Ivan could speak three languages when he was five.
Could Ivan speak three languages when he was five?
Ivan couldn't speak three languages when he was five.
3 We could help you with that.
Could we help you with that?
We couldn't help you with that.
4 They can take us to the restaurant.
Can they take us to the restaurant?
They can't take us to the trestaurant.
5 You could come with us.
Could you come with us?
You couldn't come with us.
6 Martha can drive a car.
Can Martha drive a car?
Martha can't drive a car.
