capable Englisch:

They're able students.

It's important to take good care of your teeth so you'll be able to eat properly when you get older.

I don't need to sound like a native speaker, I just want to be able to speak fluently.

You may be able to pass unnoticed in a city, but in a village that's not possible.

Although he had fewer supporters among the governing class, he was able to get the popular vote.

He regained consciousness and was able to talk.

The defense lawyer was confident that he would be able to answer the prosecutor's arguments in his rebuttal.

You may not learn to speak as well as a native speaker, but you should be able to speak well enough that native speakers will understand what you have to say.

Do you think you have to be able to pass for a native speaker to be an effective spy?

A good ballboy or ballgirl must be able to concentrate hard and run fast.

He is able man, but on the other hand he asks too much of us.

From the moment he arrived there, he kept on bothering his doctor to tell him when he would be able to go home.

Tom was able to make himself understood in French when he visited Paris.

I never for a moment imagined I'd be able to afford to live in such a fancy house.

I want to try my best for as long as I am physically able to.