Standard English uses "may", "can", and "might" in different ways:
may - permission, "You may borrow my rake."
can - ability, "I can lift that log."
might - possibility, "It might rain today."
Unfortunately, in conversational English, their use is often mixed, as
in, "You may use this variable to do X", when in fact, "can" is a better
choice. Similarly, "It may crash" is better stated, "It might crash".
It required some changes in lexize algorithm, but interface with
dictionaries stays compatible with old dictionaries.
Funded by Georgia Public Library Service and LibLime, Inc.
Bruce Momjian
Teodor Sigaev