Difference Between May And Might And Could. As a noun may is. The restaurant could close.
Use may when something is more likely to happen. Both can be used in place of each other in most circumstances except at times when the sentence sounds wrong for example. Determining whether something is very likely or remotely likely is the difference between choosing may or might for your sentence.
May I say something.
However when we are making a suggestion we explicitly make use of the word could and if we are making an offer or invitation we use would. If something is very far-fetched you probably want to use might. So we say may be not may to be. Could is the preterite form of can and both can be used as modals.
