In many situations, the choice between these two verbs can be clarified by remembering that might is the past tense form of may, and that in English, a past tense form is used to refer not just to events that occurred in the past (She left yesterday), but to hypothetical, counterfactual, or remotely possible situations (If you left now, you'd ge...
For many speakers, the use as the past tense of the auxiliary may, indicating permission, is obsolete: I told him he might not see her will only be interpreted as "I told him he would possibly not see her," and not as "I told him he was not allowed to see her."
Might, as a verb, generally refers to the possibility or likelihood of something happening or being the case. It suggests a potential action, ability, or outcome that is uncertain or conditional.
Master all 9 modal verbs (can, could, may, might, must, shall, should, will, would) with clear explanations, examples & quizzes. Learn the rules, differences, sentence formations AND pronunciation!
MODAL VERBS: All you need to know about CAN, COULD, MAY, MIGHT, MUST ...