0 used to express possibility: --
There may be some evidence to suggest she's guilty, but it's hardly conclusive.
The explosion may have been caused by a faulty electrical connection.
The cause of the accident may never be discovered.
1 used to ask or give permission: --
3 the flowers of the hawthorn tree --
4 the fifth month of the year, after April and before June: --
5 used to express possibility: --
His birthday is in May.
We went to Crete last May.
Ask your teacher if you may sit at the front of the class until your glasses are repaired.
Now a round of quick-fire questions - the first person to press their buzzer may answer.
"Higgins, you may go now." "Very good, sir."
I worry about the destructive effect that violent films may have on children.