"I am able to swim." a) I can swim. b) I could swim.

"When I was little, I was not able to run faster than my parents." a) I can't run faster than my parents. b) I couldn't run faster than my parents.

"I'm not able to play chess - it's too confusing!" a) I can't play chess! b) I couldn't play chess!

"I don't think I would ever be able to look after a pet elephant - they eat too much! a) I can never look after a pet elephant. b) I could never look after a pet elephant.

"I am able to speak 3 languages!" 1) I can speak 3 languages! 2) I could speak 3 languages!

When do we use 'could'? a) To talk about ability in the past b) To talk about ability in the present c) To talk about ability in the past and conditionally

I would never be able to learn Russian! a) I can never learn Russian! b) I could never learn Russian!

What is the infinitive of 'can'? a) To can b) To be able to c) To could

"When you turn 17, you are able to learn to drive." a) You can learn to drive. b) You could learn to drive.

"When I was 5, I was able to say the alphabet backwards." a) I can say the alphabet backwards. b) I could say the alphabet backwards.