Might is used to express possibility or make suggestions and requests. It can indicate possibility that something may happen, such as "your phone might be in the kitchen". It is also used in conditional sentences and to make polite suggestions, though this use is more common in British English. Might changes form in the past and future, expressing possibility, suggestions, or requests in various tenses, such as "Peter might have been stuck in traffic" or "you might want to catch a taxi".

1. Might' is used mostly to express possibility. English speakers use 'might' to make suggestions or
requests, although this is more common in British English and could be seen as extremely
formal.
'Might' is also used in conditional sentences.
Possibility: Your phone might be in the kitchen.
Suggestion: You might want to suggest that to the committee.
Request: Might I ask a question?
Conditional: If I didn't have to study, I might go out.
'Might' like most modals is very different in the past or future. Here are some examples of 'might'
with its different functions:
Possibility
Present: Peter might be stuck in traffic. / Peter might not be stuck in traffic.
Past: Peter might have been stuck in traffic. / Peter might not have been stuck in traffic.
Future: Peter might be stuck in traffic when he leaves work. / Peter might not be stuck in traffic
when he leaves work.
With possibility 'could' and 'may' are also possible.
Suggestion
Past: You might have caught a taxi.
Future: You might want to catch a taxi. / You might not want to catch a taxi.
With suggestions 'could' is also possible. With suggestions using 'might' there is no present form
and no negative form in the past.
Request
(more common in British English)
Present:
Might I have a coffee?
Might I ask who has been invited to the party?
Requests usually refer to an immediate future. 'could', 'may' and 'can' are also possible.