Both may and might can be used to express possibility. Some examples: It might rain tonight....The past form is may/might + have + past participle. I might have left my phone at home. She might not have seen my email. Where is Amanda? I think she may have forgotten about the meeting.

There are nine modal auxiliary verbs: shall, should, can, could, will, would, may, must, might. There are also quasi-modal auxiliary verbs: ought to, need to, has to.

'may' and 'might' Level: beginner. We can use may not to refuse permission or to say that someone does not have permission, but it is formal and emphatic: We use might when we are not sure about something in the present or future: Level: intermediate. We use may have and might have to make guesses about the past:

Helping verbs, helping verbs, there are 23! Am, is, are, was and were, being, been, and be, Have, has, had, do, does, did, will, would, shall and should. There are five more helping verbs: may, might, must, can, could!

The principal English modal verbs are can, could, may, might, shall, should, will, would, and must. Certain other verbs are sometimes classed as modals; these include ought, had better, and (in certain uses) dare and need.

be, can, could, dare, do, have, may, might, must, need, ought, shall, should, will, would. The status of dare (not), need (not), and ought (to) is debatable and the use of these verbs as auxiliaries can vary across dialects of English. If the negative forms can't, don't, won't, etc.

Both may and might are used to express the possibility of some future action; might is more tentative than may. The weather may/might be better tomorrow. Craig may/might know his results soon. We may/might go to the cinema tonight.