"might be" vs "may be" ?
For example:

It might be a good idea.
It may be a good idea.

For me, both phrases have the same meaning, what's the difference?

Question

"might be" vs "may be" ?
For example:

It might be a good idea. 
It may be a good idea.

For me, both phrases have the same meaning, what's the difference?

Answer

"might" includes much uncertainty.

"may" , the opposite.

So the two sentences are the similar meanings.

But the first one is more uncertain than the second one.

Answer

May is present tense, so strictly speaking it implies a 'possibility now' whereas might implies 'perhaps will ...' but really they are used as interchangeable.  might is past tense, and should be used in preference to may in cases of a past event that turned out impossible - 'if he hadn't been caught cheating he might have become Olympic champion'

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