Can I open the window?
- Language
- English
- Level
- B1
- Unit
- Modal Verbs
- Practice types
- 0
What this grammar point covers
Modal verbs for permission are words like 'can', 'could', and 'may' that we use to ask for, give, or refuse permission in English.
When to use it
Use these forms in English when you want to ask if something is allowed, give someone permission, or refuse permission.
Key forms
- 'Can I...?'
- 'Could I...?'
- 'May I...?'
- 'You can...'
- 'You may...'
Examples
You can use my phone.
May I leave early?
Could I borrow your book?
Sorry, you can't park here.
Tips
- Use 'can' and 'could' for informal situations. 'May' is more formal or polite.
- Do not use 'to' after modal verbs: say 'Can I go?' not 'Can I to go?'.
- The verb after a modal verb is always the base form (infinitive without 'to').
Exceptions and edge cases
- 'May' is less common in everyday conversation, but is still correct and very polite.
- In negative forms, use 'can't' or 'may not' to refuse permission.