Question

what are the differences of the three modal verbs of permission​

Answer 1

Answer:

When we want to express permission, prohibition (not allowing something), obligation or no obligation we use modal verbs. 'Can' is most often used to ask for or give permission but 'may' and 'could' are also possible even though they are not used as often as 'can'

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Answer 2

Answer:

When we want to express permission, prohibition (not allowing something), obligation or no obligation we use modal verbs. 'Can' is most often used to ask for or give permission but 'may' and 'could' are also possible even though they are not used as often as 'can'.