You use might to indicate that something will possibly happen or be true in the future, but you cannot be certain.

You use might to indicate that there is a possibility that something is true, but you cannot be certain.

You use might to indicate that something could happen or be true in particular circumstances.

You use might have with a past participle to indicate that it is possible that something hap-pened or was true, or when giving a possible explanation for something.

You use might have with a past participle to indicate that something was a possibility in the past, although it did not actually happen.

You use might in statements where you are accepting the truth of a situation, but contrasting it with something that is more important.

You use might when you are saying emphatically that someone ought to do the thing mentioned, especially when you are annoyed because they have not done it.

You use might to make a suggestion or to give advice in a very polite way.

You use might as a polite way of interrupting someone, asking a question, making a request, or introducing what you are going to say next.

You use might in expressions such as as you might expect and as you might imagine in order to indicate that the statement you are making is not surprising.

You use might in expressions such as I might add and I might say in order to emphasize a statement that you are making.

You use might in expressions such as I might have known and I might have guessed to indicate that you are not surprised at a disappointing event or fact.