@PUNKEY,
Quote:You have permission to . . . (may)
You are able to . . . (can)
FALSE, FALSE, FALSE, Punkey.
You can use my pen. = You have my permission to use my pen.
Of course 'can' also holds the meaning of ability.
Of course, one could also say, " You may use my pen", but the use of 'may' for permission is very rare as measured against CAN, COULD, WOULD.