1. MIGHT
Modal verb

2. MIGHT
Use might / might not + verb (infinitive without to) to say that MAYBE you will or won’t do something.
Tomorrow I might go out if it doesn’t rain.
A: Are you coming to the party?
B: I don’t know yet. I might go to the cinema with Sue.

3. MIGHT might / might not is the same for all persons.
I might arrive late today.
She might not arrive in time today. Her car is broken.
We might arrive early. We don’t have anything to do.
might not is not usually contracted.
! may / may not
You can also use may instead of might for possibility, e.g.
We may have a picnic tomorrow.
I may not go to the party.