ability or possibility (with: can/can't; could/couldn't)

Can you hold a racket properly?

• ability

• possibility

Can you come to the stadium in the morning?

• ability

• possibility

I could go mountain biking every day when I was in Austria.

• ability

• possibility

I can't speak louder. My voice is quiet.

• ability

• possibility

I couldn't jump over the fence. My leg hurt.

• ability

• possibility

It can be really annoying when people ask you a lot of questions.

• ability

• possibility

I could become a professional gymnast when I was 12.

• ability

• possibility

I could do gymnastics performances when I was 12.

• ability

• possibility

Adults can read fast.

• ability

• possibility

I couldn't be a journalist. We didn't have journalism in my university.

• ability

• possibility