Which sentence correctly uses 'be able to' in the present ...

★ Verb Ability

Which sentence correctly uses ‘be able to’ in the present perfect tense?

A. I am able to solve the puzzle.

B. I was able to solve the puzzle.

C. I will be able to solve the puzzle.

D. I have been able to solve the puzzle.

Preview next quiz:

Choose the correct sentence using ‘could’ to express past ability.

A. She can sing beautifully when she was younger.

B. She could sing beautifully when she was younger.

C. She is able to sing beautifully when she was younger.

D. She will be able to sing beautifully when she was younger.