Similarly, we can use the modal auxiliaries may or might to say that there is a chance that something is true or may happen. May and might are used to talk about present or future events. They can normally be used interchangeably, although might may suggest a smaller chance of something happening.
Q: What are you doing over the hollidays?
A: I may go to America, but there again, I might stay at home.
I am not a teacher.
“Might” is also the past tense of the auxiliary verb “may,” and is required in sentences like “Chuck might have avoided arrest for the robbery if he hadn’t given the teller his business card before asking for the money.”
When speculating that events might have been other than they were, don’t substitute “may” for “might."