can: to be able
Dogs can see a smaller range of colours than humans.
may: expressing uncertainty, or to be possible
He may be correct in his assumption.
The mixture may separate into 2 phases.
You may apply during the 3 months before the closing date.
The mixture may separate into 2 phases.
You may apply during the 3 months before the closing date.
might: expressing strong uncertainty
We might be able to obtain government funding, but it is unlikely this year.