She can speak three languages. We managed to find a taxi.
She is able to work under pressure.
(= she can work under pressure)
I wasn't able to finish the test in time.
(useful in tenses where "can" doesn't work)
She succeeded to pass the exam.
She succeeded in passing the exam.
I managed passing the test.
I managed to pass the test.
When I was young, I can swim fast.
When I was young, I could swim fast.
I am able ^ swim very well.
I am able to swim very well.
Say the answer out loud — then tap to check.
When I was ten I couldA swim quite well, butB I couldn't toC dive fromD the high board.
Ccouldn't to → couldn't
✓ modals take the bare infinitive
Despite ofA her injury, she was able toB finish the race andC even managedD to smile.
ADespite of → Despite
✓ despite takes no of
After three years of lessons my brother canA play the guitar well, andB next year he willC canD join a band.
Dcan → be able to
✓ two modals cannot stack — use be able to
Use can / could / be able to / manage to / succeed in.
Manage to / succeed in are for ONE difficult achievement, not general skill.