I'm not sure but I think my camera MAY BE broken.
a guess about the present
I don't know where your gloves are. They MIGHT BE in the kitchen.
a guess about the present
We're late. The play MAY HAVE STARTED already.
a guess about the past
I'm afraid you MIGHT HAVE BROKEN your arm. You need an X-ray.
a guess about the past
MAY I HAVE your attention, please?
asking for permission: formal
MIGHT I HAVE a word in private?
asking for permission: very polite
You MAY MAKE one telephone call.
giving permission: formal
Boys and girls at this school MAY NOT WEAR jewellery.
no permission: formal, emphatic
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