Modals of Permission and Ability

1. may/might

1.1. Possibility

1.1.1. I may/might go to the party. I'm not sure

1.1.2. He's busy so he might not come to the party

1.2. Permission (MAY)

2. can

2.1. Abilty

2.1.1. I can ride a bike

2.1.2. I can't speak German

2.2. Permission

3. could

3.1. Ability or possibility in the PAST

3.1.1. I could play the piano when I was a kid.

3.2. Permission (permission)

3.2.1. Could we go to the bathroom?

4. to be able to

4.1. Ability and Possibility

4.1.1. Conjugates!

4.1.1.1. Will cars be able to fly in the future?

4.1.1.2. I MIGHT BE ABLE to go to the party