What’s the difference between can and be able to?

Question

Answer

Practically none.. although, “can” has become a substitute for “may” (asking permission).. e.g., can I call you? can I take you out to dinner some time?

Answer

Can refers to possibility and be able to refers to ability.

I can do it= It's possible for me to do it
I am able to do it= I have the ability to do it

Answer

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Answer

One is power another one is a possibility.

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