What forms ου?
εο, οε, οο
What forms ει?
εε
What forms ω?
Except for rule 1, almost any combination of ο or ω with any other vowel.
What forms α?
αε
What forms η?
εα
Chart
a e h i u o w
a a a a ai au w w
e h ei h ei eu ou w
o w ou w oi ou ou w
What are the 8 rules of contraction?