Asking Permission in English

How to ask permission in English can be expressed by using some modal verbs such as can, could, may. Another pattern to ask permission is used the pattern Do you mind...?
Study the following expression in asking permission in English:
Can I borrow you pencil?
Could I borrow you pencil?
May I borrow you pencil?
Can I use your dictionary?
Could I borrow your bike?
May I open the door? It' hot

For more polite expression in asking permission in English, study the following sentences:
Do you mind if I borrow your pencil?
Do you mind I use your dictionary?
Do you mind I open the door?

For further explanation in asking permission in English, watch the following video lesson in asking permission