We use
may and
might to talk about possible actions or happenings in the future:
- I haven't decided yet where to go on holiday. I may go to Ireland. (= perhaps I will go there)
- Take an umbrella with you. It might rain later. (= perhaps it will rain)
- The bus isn't always on time. We might have to wait a few minutes. (= perhaps we will have to wait)
The negative forms are
may not and
might not (
mightn't):
- Amy may not go out tonight. She isn't feeling well. (= perhaps she will not go out)
- There might not be enough time to discuss everything at the meeting. (= perhaps there will not be enough time)
Compare
will and
may/
might:
- I'll be late this evening. (for sure)
- I may/might be late this evening. (possible)
Usually you can use
may or
might. So you can say:
- I may go to Ireland. or I might go to Ireland.
- Jane might be able to help you. or Jane may be able to help you.
But we use only
might (
not may) when the situation is
not real:
- If they paid me better, I might work harder. (not I may work)
The situation here is not real because they do not pay me well, so I'm not going to work harder.
There is a continuous form:
may/
might be -
ing. Compare this with
will be -
ing:
- Don't phone at 8.30. I'll be watching the football on television.
- Don't phone at 8.30. I might be watching (or I may be watching) the football on TV. (= perhaps I'll be watching it)
We also use
may/
might be -
ing for possible plans. Compare:
- I'm going to Ireland in July. (for sure)
- I might be going (or I may be going) to Ireland soon. (possible)
But you can also say 'I might go / I may go ...' with little difference in meaning.
Might as well
Helen and Clare have just missed the bus. The buses run every hour.
Helen: What shall we do? Shall we walk?
Clare: We
might as well. it's a nice day and I don't want to wait here for an hour.
We might as well do something = We should do it because there is no better alternative. There is no reason not to do it.
May as well is also possible.

- A: What time are you going out?
B: Well, I'm ready, so I might as well go now. - Buses are so expensive these days, you might as well get a taxi. (= taxis are as good, no more expensive)