1. Can, Could and Be able to

2. Express ABILITY
We use the three of them to say if someone is capable to do something.
EXAMPLE: Frank can sing.
George could drive a car.
Marie will be able to swim in summer.

3. However, CAN can only be used in the present simple or in the simple past.
EXAMPLE: Howie can give a speech for 2 hours.
John could ride a bike.
If we need to talk about a situation in the present perfect or in the future; or even a possible situation, we need to use BE ABLE TO.
EXAMPLE: Paul will be able to come to the party.
Sarah might be able to walk again.
Ema has been able to work well.
Tim would be able to read in German.

4. Now’s your turn!
Complete the sentences with can, could, or be able to.
Dan _____fly. He’s a parrot.
Tina _____ give her speech tomorrow.
Lyon _____ sing beautifully. Now he _____.
Janna _____ train lions when she was young.
Monica _____ swim since she was 5.
Teresa _____ make delicious cups of coffee.