Is there a basic rule about Greek "first names"? For example, some ATL members' names are:
(These are "online names")
However, when I make a personal post TO one of them directly . . . what are the rules about changing the name in that case?
I speak English only, and some German. In those languages, names do not change whether you are speaking about someone or to someone; the given name is the same.
Still, how does one know how to write/say the name in speaking/writing directly to that one from the given name itself? Is the ending different if the name is of a male or female? Otherwise, what is the rule to make the proper change? And are there other forms of how names are used?
I know this sounds terribly elementary, but I know nothing about Greek. This information would be very useful to me.