May and might

We use the modal verbs "may" and "might" to talk about possible activities or happenings in the future:

  • I'm not sure I'll go to the party. I may be away.
  • Don't drop by at 7:20 PM. I might be watching TV.
  • Please, prepare something to eat. Mr. Johnson might be hungry.
  • We may not be able to go to school this week.

There isn't much difference between the two. So you can say:

  • "John might be at home" or "John may be at home".
  • "I may visit Mary" or "I might visit Mary".

Sentences formed with "might" are less likely to happen than those with "may". For example:

  • I may be away at 10 PM. (35% likelihood)
  • I might be away at 10 PM. (20% likelihood)
Of course, these figures may vary depending on the situation.

Unreal Situations

However, when the situation is unreal, only "might" can be used:

  • If I were a bit smarter, I might go to college. (The speaker won't become smarter, so the situation is unreal)
Continuos Form

If you want to emphasize progression of a situation, you may use the continuous form of the verb after the modal.

  • Don't drop by at 7:20 PM. I may/might be watching TV.
Reported Speech

If you're using the reported speech, "may" becomes "might".

  • "I may be late," said Frank. In reported speech: Frank said that he might be late.

Read about Modals in the Reported Speech.