Permission: Can, May, Be Allowed To, Be Supposed To
Grammar Rule in 30 Seconds
Master permission and rules by distinguishing between internal choice (can/may) and external requirements (be allowed to/be supposed to).
- Use 'can' for informal permission: 'Can I sit here?'
- Use 'may' for formal permission: 'May I see your ID?'
- Use 'be allowed to' for rules/laws: 'We are not allowed to smoke here.'
مرور کلی
- Can I use your phone? (asking)
- You can leave early today. (giving)
- You can't come in without a ticket. (refusing)
- May I ask you a question?
- Guests may use the gym between 6am and 10pm.
- Members may not bring outside food.
- Students are allowed to use calculators.
- Were you allowed to leave early?
- She wasn't allowed to take her phone into the exam.
- You are supposed to register at the front desk.
- He was supposed to return the key. (implies he didn't)
Modal and Semi-Modal Formation
| Form | Affirmative | Negative | Question |
|---|---|---|---|
|
Can
|
I can go
|
I cannot go
|
Can I go?
|
|
May
|
I may go
|
I may not go
|
May I go?
|
|
Be allowed to
|
I am allowed to go
|
I am not allowed to go
|
Am I allowed to go?
|
|
Be supposed to
|
I am supposed to go
|
I am not supposed to go
|
Am I supposed to go?
|
Common Contractions
| Full Form | Contraction |
|---|---|
|
Cannot
|
Can't
|
|
I am not
|
I'm not
|
|
You are not
|
You aren't
|
|
He is not
|
He isn't
|
Meanings
These verbs describe whether an action is permitted, prohibited, or expected based on social or formal rules.
Informal Permission
Asking or giving permission in casual settings.
“Can I borrow your pen?”
“You can use my laptop.”
Formal Permission
Asking or giving permission in professional or polite settings.
“May I speak to the manager?”
“You may enter the office now.”
Rules and Regulations
Describing what is permitted by law or policy.
“We are not allowed to use phones in class.”
“Are we allowed to bring guests?”
Expectations
Describing what someone is expected to do.
“I am supposed to be at work by 9.”
“You are supposed to finish this by Friday.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Can
|
Can + Verb
|
Can I help?
|
|
May
|
May + Verb
|
May I help?
|
|
Allowed
|
Be + allowed + to + Verb
|
I am allowed to go.
|
|
Supposed
|
Be + supposed + to + Verb
|
I am supposed to go.
|
|
Negative
|
Not + [Modal/Be]
|
I cannot go.
|
|
Question
|
Modal/Be + Subject
|
Are you allowed to?
|
طیف رسمیت
May I take this seat? (Public transport)
Are you using this seat? (Public transport)
Can I sit here? (Public transport)
Mind if I park here? (Public transport)
Permission Hierarchy
Informal
- Can Casual permission
Formal
- May Polite permission
Rules
- Allowed to External rules
Modals vs Semi-Modals
Choosing the Right Verb
Is it a rule?
Is it formal?
مثالها بر اساس سطح
Can I sit here?
...
You can go now.
...
Can I have a coffee?
...
You can use my pen.
...
Are we allowed to eat here?
...
I am supposed to be home by 8.
...
You are not allowed to smoke.
...
Is he supposed to help us?
...
May I see your passport, please?
...
We are not allowed to use calculators.
...
You may leave the room when finished.
...
I am supposed to finish this report today.
...
May I suggest an alternative approach?
...
Employees are allowed to work remotely.
...
The project was supposed to be completed last week.
...
Are we allowed to access the restricted area?
...
One may wonder if this is the best strategy.
...
The guests are supposed to be arriving shortly.
...
We are not allowed to disclose this information.
...
May I take the liberty of speaking for the team?
...
It is supposed to be a secret, but everyone knows.
...
May I be so bold as to disagree?
...
The regulations state that one is not allowed to linger.
...
He was supposed to have been notified by now.
...
بهراحتی اشتباه گرفته میشود
Learners use 'can' for everything.
Both express expectation.
Both are modals.
اشتباهات رایج
Can I to go?
Can I go?
He cans go.
He can go.
I am can go.
I can go.
Can I have?
Can I have it?
I am allow to go.
I am allowed to go.
Are you allow to?
Are you allowed to?
I suppose to go.
I am supposed to go.
May I can go?
May I go?
I am supposed go.
I am supposed to go.
It is allowed that I go.
I am allowed to go.
He may might go.
He may go.
I am supposed that I go.
I am supposed to go.
The law says we can't to.
The law says we can't.
May I have your permission to?
May I have your permission?
الگوهای جملهسازی
Can I ___?
I am not allowed to ___.
I am supposed to ___ by noon.
May I ___ your attention?
Real World Usage
Can I share this post?
May I ask about the team?
Am I allowed to bring this liquid?
Can I add a note to the order?
May I go to the restroom?
Can we meet later?
Use 'May' for respect
Don't stack modals
Be precise with rules
Politeness matters
Smart Tips
Use 'May' to sound more professional.
Use 'allowed to' instead of 'can'.
Use 'supposed to' for expectations.
Use 'Could' for a polite request.
تلفظ
Can vs Can't
Can is often unstressed /kən/. Can't is stressed /kænt/.
Rising intonation
Can I go? ↗
Indicates a polite question.
حفظ کنید
روش یادسپاری
Can is for a friend, May is for a King, Allowed is for the Law, Supposed is for a plan.
تداعی تصویری
Imagine a child asking a parent 'Can I?' (informal), a student asking a professor 'May I?' (formal), and a prisoner looking at a sign saying 'Not allowed to' (rule).
Rhyme
Can is for the casual day, May is for the formal way, Allowed is what the rules decree, Supposed is what you plan to be.
Story
Sarah wanted to visit the library. She asked her friend, 'Can I go with you?' Her friend said yes. At the door, a sign said, 'You are not allowed to enter without a card.' Sarah sighed, 'I was supposed to bring mine, but I forgot.'
شبکه واژگان
چالش
Write 5 sentences using each of the four forms today.
نکات فرهنگی
May is used more frequently in formal settings than in American English.
Can is very common even in semi-formal settings.
Often uses 'allowed to' in casual contexts for rules.
These modals stem from Old English verbs that expressed ability and permission.
شروعکنندههای مکالمه
Can I help you with something?
Are you allowed to work from home?
What are you supposed to do today?
May I ask why you chose this path?
موضوعات نگارش
اشتباهات رایج
Test Yourself
___ I borrow your pen?
We ___ to smoke here.
Find and fix the mistake:
I can to go.
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
Is it permitted?
Answer starts with: Is ...
Match each item on the left with its pair on the right:
I ___ to be at the meeting at 9.
___ I ask a question?
Score: /8
تمرینهای عملی
8 exercises___ I borrow your pen?
We ___ to smoke here.
Find and fix the mistake:
I can to go.
to / supposed / I / am / leave
Is it permitted?
May
I ___ to be at the meeting at 9.
___ I ask a question?
Score: /8
سوالات متداول (8)
It's better to use 'may' or 'could'. 'Can' might sound too casual.
Modals like 'can' are followed by the base verb without 'to'.
It's neutral. It just describes rules.
'Supposed to' is about plans, 'should' is about advice.
No, 'may' is only for permission or possibility.
Yes, 'I was allowed to go'.
No, it often means an expectation or a plan.
It's a cultural preference for formality in certain regions.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Poder
English uses 'allowed to' for rules, Spanish uses 'poder' or 'estar permitido'.
Pouvoir
French uses 'avoir le droit de' for 'be allowed to'.
Dürfen/Können
German is more precise with modal verbs than English.
~te mo ii
Japanese does not use modal verbs in the same way.
Yastati'
Arabic separates ability and permission into different verb roots.
Ke yi
Chinese lacks the complex conjugation of 'be allowed to'.
Learning Path
Prerequisites
ویدیوهای مرتبط
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