May vs shall can be confusing for English learners because both words are modal verbs used to talk about the future, possibility, permission, or formal intentions. However, they do not have the same meaning or usage. May is commonly used to express possibility or permission, while shall traditionally expresses future intention, obligation, or a formal suggestion. In modern English, shall is much less common in everyday conversation and is often replaced by will or should, depending on the meaning. Understanding the difference between may and shall can help you write more accurately, understand formal English, and avoid common grammar mistakes. This guide explains both words with simple rules, examples, comparisons, and memory tips.
Why “May” and “Shall” Are Confusing
English learners often confuse may and shall because both are modal auxiliary verbs. Modal verbs are helping verbs that change the meaning of a main verb by expressing ideas such as possibility, permission, intention, necessity, or obligation.
Similar pronunciation
May and shall are not pronounced the same, so they are not true sound-alike words. However, learners may hear both in formal conversations and written English and become uncertain about when to use each one.
For example:
- You may leave now.
- We shall begin the meeting.
Both sentences sound formal, but the modal verbs have different functions.
Similar spelling
The words are not particularly similar in spelling. However, both are short modal verbs that appear before the base form of another verb:
- You may go.
- We shall go.
This similar grammatical pattern can make their meanings seem closer than they really are.
Context confusion
The biggest source of confusion is context. May can express permission or possibility, while shall can express a future action, suggestion, obligation, or formal requirement.
For example:
- May I enter? → asking for permission.
- Shall we enter? → making a suggestion.
Changing the modal changes the purpose of the sentence.
Common learner mistakes
Some learners use shall whenever they want to talk about the future. Others use may when they actually mean a firm future action. Modern English generally uses will for ordinary future statements.
For example:
- I will call you tomorrow. ✅
- I shall call you tomorrow. ✅ Formal or traditional
- I may call you tomorrow. ✅ Possible, not certain
The last sentence does not promise a call. It only says that a call is possible.
May vs Shall Explained Simply
May means that something is possible or that someone has permission to do something, while shall is mainly used in formal or traditional English for future intention, suggestions, or requirements.
One-line distinction
May = possibility or permission; shall = formal future intention, suggestion, or obligation.
Examples
- You may use my computer.
Here, may gives permission. - Shall we start the lesson?
Here, shall is used to make a suggestion.
Compare these:
I may visit Lahore tomorrow.
This means visiting Lahore is possible, but the speaker has not decided or confirmed it.
I shall attend the meeting tomorrow.
This is a formal way of stating a future intention.
Understanding Homophones in English
What Are Homophones?
Homophones are words that sound the same but have different meanings and often different spellings.
For example:
- right — correct or opposite of left
- write — to form words with letters
These words sound alike but have different meanings and spellings.
It is important to note that may and shall are not homophones. They have different pronunciations, spellings, and meanings. However, learners sometimes group them together because they are both modal verbs and can occur in similar sentence structures.
Why Homophones Cause Confusion
Homophones can be confusing because you cannot always identify the correct word simply by hearing it.
For example:
- I want to write a letter.
- Turn right at the corner.
The listener must understand the context to know which word is intended.
With may and shall, the problem is different. Their sounds are not identical, but their grammatical position can look similar:
- You may come.
- You shall come.
The meaning depends heavily on the modal verb and the context.
What Does “May” Mean?
Definition and Core Meaning
May is a modal auxiliary verb commonly used to express:
- Possibility
- Permission
- Uncertainty
- A formal request
- A wish or hope in certain expressions
When may expresses possibility, it means that something could happen but is not certain.
Example:
It may rain tonight.
The speaker believes rain is possible, but does not know for certain.
When may expresses permission, it means someone is allowed to do something.
Example:
You may leave after the test.
This means the person has permission to leave.
Origin and Historical Use
May comes from Old English magan, a verb associated with having the ability, power, or permission to do something. Over centuries, its meaning developed into the modern uses of possibility and permission.
Historically, may has been an important way to express possibility and permission in English. Its basic functions remain common today.
Modern Usage and Synonyms
In modern English, may is still widely used in both formal and everyday writing.
Depending on the context, related expressions include:
- might — possible, often with a slightly weaker sense
- could — possible under certain circumstances
- be allowed to — have permission
- perhaps — possibly
For example:
- She may come later.
- She might come later.
- She could come later.
All can express possibility, although the exact meaning and level of certainty may differ.
Example Sentences
- May I ask a question?
- You may sit here.
- It may be difficult to finish today.
- He may arrive late.
- We may need more time.
- May I use your phone?
A useful point for learners is that may is often considered more polite or formal than can when asking for permission.
Compare:
Can I leave early? — Common and natural in everyday English.
May I leave early? — More formal or polite.
What Does “Shall” Mean?
Definition and Core Meaning
Shall is a modal auxiliary verb traditionally used to express future action, intention, determination, obligation, or a suggestion.
In modern everyday English, shall is less common than will, especially in American English. However, it remains important in British English, formal writing, legal language, official documents, and questions involving suggestions.
For example:
Shall we go now?
This means:
Would you like us to go now?
Here, shall is used to make a suggestion.
Origin and Historical Context
Shall comes from Old English sceal, which was connected with ideas of obligation, duty, and necessity. Over time, it became associated with future meaning, especially with first-person subjects such as I and we.
Traditional grammar taught a distinction between shall and will depending on the subject and the speaker’s intention. In modern English, however, this distinction has become much less strict.
Today, will is normally used for ordinary future statements:
I will call you tomorrow.
Using shall instead can sound formal, old-fashioned, or regionally British:
I shall call you tomorrow.
Modern Usage and Synonyms
Today, shall is especially common in the following situations:
- Making suggestions
- Offering to do something
- Asking about someone’s preference
- Formal rules or documents
- Legal and official language
- Formal or traditional future statements
Related expressions can include:
- will — ordinary future
- should — advice or expectation
- must — strong obligation
- let’s — informal suggestion
Example Sentences
- Shall we start the meeting?
- Shall I open the window?
- We shall overcome this difficulty.
- The tenant shall pay the rent on time.
- Shall we meet at five?
- I shall return tomorrow.
Notice that shall does not always mean exactly the same thing. Its meaning depends on context.
For example:
Shall I carry your bag?
This is an offer.
But:
The applicant shall provide all required documents.
This expresses a formal requirement.
May vs Shall: Key Differences at a Glance
| Word | Part of Speech | Meaning | Example Context |
|---|---|---|---|
| May | Modal auxiliary verb | Possibility or permission | You may leave now. |
| Shall | Modal auxiliary verb | Formal future, suggestion, offer, or obligation | Shall we leave now? |
More examples
May for possibility:
Sarah may visit us this weekend.
Sarah might visit, but it is not certain.
May for permission:
Students may use calculators.
Students are allowed to use calculators.
Shall for suggestion:
Shall we order some food?
The speaker is asking for agreement or making a suggestion.
Shall for formal requirement:
The employee shall submit the report by Friday.
The statement presents a formal requirement.
How to Remember the Difference Between May and Shall
Learning a simple association can make these modal verbs much easier to remember.
Memory Trick 1: May = Maybe
Connect may with maybe.
May = Maybe
If something may happen, it is possible.
Example:
It may snow tomorrow.
Think: “Maybe it will snow.”
Memory Trick 2: May = Permission
Remember this question:
May I…?
This is a classic way to ask permission.
Example:
May I come in?
The answer could be:
Yes, you may.
Memory Trick 3: Shall = Suggestion
Connect shall with questions such as:
Shall we…?
This usually means “Would you like to…?” or “Should we…?”
Example:
Shall we watch a movie?
The speaker is suggesting an activity.
Association Technique
Remember these three pairs:
- May → possibility
- May → permission
- Shall → suggestion
One memorable example is:
It may rain, so shall we stay inside?
The first part expresses possibility. The second part makes a suggestion.
Common Mistakes and Confusions
Mistake 1: Using “may” for a certain future action
Wrong:
I may meet you tomorrow.
(if you mean that the meeting is definitely planned)
Better:
I will meet you tomorrow.
Explanation:
May suggests possibility. If the action is definite, will is usually more appropriate.
Mistake 2: Using “shall” for every future sentence
Unnatural in ordinary modern English:
I shall go to school tomorrow.
This is grammatically possible, but it sounds formal or traditional in many varieties of English.
More natural:
I will go to school tomorrow.
Mistake 3: Confusing “May I?” with “Shall I?”
These questions have different meanings.
May I open the door?
This asks for permission.
Shall I open the door?
This asks whether the speaker should open it or offers to do so.
Mistake 4: Confusing “Shall we?” with “May we?”
Shall we begin?
This means “Should we begin?” or “Are we ready to begin?”
May we begin?
This means “Are we permitted to begin?”
The difference is small in form but important in meaning.
Examples Section: Correct and Incorrect Usage
Example 1
✔ Correct: It may rain this evening.
✘ Incorrect: It shall rain this evening. (if you simply mean that rain is possible)
Why?
Use may for possibility. Shall does not normally express an uncertain prediction in this way.
Example 2
✔ Correct: May I use your pen?
✘ Incorrect: Shall I use your pen? (if you are asking for permission)
Why?
May I…? asks for permission. Shall I…? normally asks whether you should do something or offers to do it.
Example 3
✔ Correct: Shall we start the class?
✘ Incorrect: May we start the class? (if you are simply suggesting that the class should start)
Why?
Shall we…? is commonly used for suggestions. May we…? asks for permission.
Example 4
✔ Correct: You may leave after completing the assignment.
✘ Incorrect: You shall leave after completing the assignment. (if you only intend to give permission)
Why?
May means the person is allowed to leave. Shall can sound like a formal instruction or requirement, which changes the meaning.
Example 5
✔ Correct: The contractor shall provide the required documents.
✔ Correct: The contractor may provide additional documents.
Why?
The first sentence expresses a formal requirement. The second indicates that providing additional documents is permitted or possible.
Self Assessment: Test Your Knowledge
Fill in each blank with may or shall.
- ______ I borrow your notebook?
- It ______ be difficult to complete the project today.
- ______ we meet at the library after school?
- The applicant ______ submit all required documents before the deadline.
Self Assessment Answers
- May — “May I borrow your notebook?” asks for permission.
- May — “It may be difficult” expresses possibility.
- Shall — “Shall we meet?” is a suggestion.
- Shall — In this formal context, “shall submit” expresses a requirement.
FAQs About “May and Shall”
1. What is the difference between may and shall?
May generally expresses possibility or permission, while shall is commonly used for suggestions, formal future statements, offers, or requirements.
2. Is “may” a future tense word?
Not exactly. May is a modal verb. It can refer to a future possibility, such as:
She may arrive tomorrow.
The sentence describes a possible future event.
3. Is “shall” still used in modern English?
Yes. Shall is still used, especially in British English, formal writing, legal documents, official rules, and questions such as “Shall we…?”
However, will is more common for ordinary future statements in modern English.
4. Is “May I?” more polite than “Can I?”
Both are widely used. May I…? is traditionally associated with formal permission, while Can I…? is extremely common in everyday conversation.
For formal situations, May I…? can be a useful choice.
5. What does “Shall we?” mean?
Shall we…? usually means “Should we…?” or “Would you like us to…?” It is commonly used to make a suggestion.
Example:
Shall we go for a walk?
6. Can “shall” mean obligation?
Yes. In formal, legal, or official language, shall can indicate a requirement.
Example:
The applicant shall provide proof of identity.
Here, the action is presented as a formal requirement.
7. Which is correct: “May I go?” or “Shall I go?”
Both can be grammatically correct, but they ask different questions.
May I go? asks for permission.
Shall I go? asks whether the speaker should go, often seeking advice or offering to do something.
Final Conclusion: Using “May” and “Shall” Correctly
Understanding may vs shall becomes much easier when you focus on the purpose of the sentence instead of trying to memorize complicated grammar rules. May is mainly used for possibility and permission. When you say, “It may rain,” you mean rain is possible. When you ask, “May I come in?” you are asking for permission. Shall, on the other hand, is commonly used for suggestions, offers, formal future statements, and requirements. “Shall we begin?” is a suggestion, while “The applicant shall provide the documents” expresses a formal requirement.
In everyday modern English, will is usually more natural than shall for ordinary future statements. However, shall remains useful in formal English and is especially common in expressions such as “Shall we?” and “Shall I?”
A simple memory trick is to remember “may = maybe” and “shall = suggestion.” When you see may, think possibility or permission. When you see shall, think suggestion, offer, or formal requirement. With regular practice and attention to context, choosing between these two modal verbs will become much more natural. Keep reading, practicing, and creating your own examples—the more you use English, the easier these small differences become.
David Parker is a language researcher and content writer at WordClarity.com, specializing in English word meanings, comparisons, spelling differences, and usage guides. He creates easy-to-understand content that helps readers improve clarity and confidence in everyday English. His work focuses on making language learning simple, accurate, and practical.