May / Might: Permission and Possibility

GRAMMAR-(B1-B2)

9/22/2025

Explanation

Modal verbs may and might are used to show permission and possibility.

1. May

  • Permission (formal, polite):

    • May I sit here? (= asking politely)

    • You may leave early today. (= giving permission)

  • Possibility (something could happen):

    • It may rain later. (= it’s possible)

    • He may not come to the party. (= maybe he won’t come)

👉 Negative: may not

  • You may not park here. (= it’s not allowed)

  • It may not snow tomorrow. (= probably not)

2. Might

  • Possibility (weaker than “may”):

    • I might watch TV tonight. (= maybe yes, maybe no)

    • She might not join us. (= it’s uncertain)

⚠️ Important: Might is not used for permission.

  • Might I sit here?

  • May I sit here?

Quick Tip

  • Use may for permission.

  • Use may / might for possibility.

Exercise 1 – Sentence Practice

  1. May I open the window?

  2. You may not use your phone during the test.

  3. It may rain this evening.

  4. She may not come to class tomorrow.

  5. He might be late.

  6. The shop might not open today.

Exercise 2 – Dialogue Practice

At the Library

  • Student: May I borrow this book?

  • Librarian: Yes, you may.

At the Bus Stop

  • Friend 1: The bus is late.

  • Friend 2: It may come soon, or it might be canceled.

At a Party

  • Guest: May I have this dance?

  • Host: Of course, you may.

Exercise 3 – Rephrasing Sentences

Rewrite the sentences using may or might.

  1. Can I sit here?

  2. You are allowed to come home late.

  3. It's possible that I won’t be able to see you tomorrow.

  4. If they hurry, they can possibly catch the train.

  5. If she doesn’t wake up, it’s possible that she will miss her flight.

Exercise 4 – Sentence Building

Use may to politely ask permission.

  • lean my seat back (on an airplane)

  • put my bags here

  • hang my coat here

  • have this dance (at a party)

  • have a glass of water

Exercise 5 – Error Correction

Correct the mistakes in these sentences.

  1. Might I borrow your phone?

  2. It may not rains tomorrow.

  3. He may goes to the store.

  4. You might park here. (asking for permission)

  5. She may not to agree with you.

Answer Key

Exercise 3

  1. May I sit here?

  2. You may come home late.

  3. I may not be able to see you tomorrow.

  4. They may catch the train if they hurry. / They might catch the train if they hurry.

  5. She may miss her flight if she doesn’t wake up. / She might miss her flight if she doesn’t wake up.

Exercise 4 (sample answers)

  • May I lean my seat back?

  • May I put my bags here?

  • May I hang my coat here?

  • May I have this dance?

  • May I have a glass of water?

Exercise 5

  1. ❌ Might I borrow your phone? → ✅ May I borrow your phone?

  2. ❌ It may not rains tomorrow. → ✅ It may not rain tomorrow.

  3. ❌ He may goes to the store. → ✅ He may go to the store.

  4. ❌ You might park here. → ✅ May I park here? (if asking for permission) / You may park here. (if giving permission)

  5. ❌ She may not to agree with you. → ✅ She may not agree with you.

a traffic light with a green pedestrian sign on it
a traffic light with a green pedestrian sign on it