Resposta:
When you wish to express ability, opportunity, permission, request, or possibility.
Explicação:
"Can" is a commonly used modal verb in English. Here are some examples of 'can':
Ability:
She can run a marathon.
Opportunity:
We can go out when I get to London.
Permission:
You can't use my credit card.
Request:
Can I borrow your book?
Possibility:
You can learn French at that school.
