[QUOTE=Thudlow Boink]
Could one (or more) of the Dope’s grammar experts please explain the difference between “may” and “might”?
Every so often I read or hear something that uses the word “may” in a way that sounds wrong to me, where “might” would be the more appropriate word, or vice versa. But it might be me who’s wrong—or should I say “it may be me who’s wrong”?
The most recent example: I read, in a review of John Kennedy Toole’s A Confederacy of Dunces, “Toole’s prose is energetic, and his talent, had it matured, may have produced a masterpiece.” To me, the “may” implies something that’s still possible. I would have used the word “might” instead, meaning “it could have but it didn’t.” Am I right? What’s the official distinction?
[/QUOTE]
As far as the sentence you’re quoting, I agree; “might” is the correct choice. Your earlier pair is less cut-and-dried: when dealing with a situation lying in the present, “might” merely implies a greater degree of uncertainty than “may,” so neither is grammatically incorrect. The correct sentence, however, would use “I,” not “me.”
As far as meaning goes:
“It might be I who is wrong” = I’m not wrong, but I’m willing to acknowledge the theoretical possibility.
“It may be I who is wrong” = I don’t think I’m wrong, but I don’t have all the facts.
I think you mean the second of these, so I’d advise “may.”
Here’s the way I see it: “might” is the past tense of “may.” As such, it also serves as the past, or second, subjunctive of “may.” This neatly explains all of the above. Likewise related are: “would” and “will”; “should” and “shall”; and “could” and “can.” There might be other pairs that are slipping my mind at the moment. It’s important to remember that these relationships do not straightforwardly determine their current usage.