Question

I want to know the difference between the use of can and could?

Answer 1

can is present tense and could is the past tense of can.can and could means the ability.ex: I could be able to win the match. i can do it.

Answer 2

Can is used to say that someone is able to do something. There is a strong sense of possibility here. Could is used to define actuvities that are of less possibility