Can for Permission
Use can to ask or give permission.
Examples
- Can I sit here?
- You can use my phone.
Key rules
- Can asks for and gives permission: Can I open the window?
- Could and May are more polite (May I come in?)
- Answer: Yes, you can. / No, you can't.
- Can is followed by the base verb without to
Common mistakes
- Can I to sit here? โ Can I sit here?
- Can I borrowing your pen? โ Can I borrow your pen?
๐ก Tip: Use Could I for strangers and Can I for friends.