Noun rules

Question 1

Rule #5

Answer 1

Vowels often change their length (ablaut). They can lengthen (o -> ω), shorten (ω -> o) or disappear.

Question 2

Rule #4

Answer 2

In the dative singular, the ι subscripts if possible.

Question 3

Rule #6

Answer 3

In the genitive and dative, the masculine and neuter will always be identical.

Question 4

Rule #1

Answer 4

Stems ending in alpha or eta are in the first declension, stems ending in omicron are in the second, and consonantal stems are in the third.
ὥρα, γραφή λόγος, ἔργον

Question 5

Rule #3

Answer 5

Almost all neuter words end in alpha in the nominative and accusative plural.
ἔργα

Question 6

Rule #2

Answer 6

Every neuter word has the same form in the nominative and accusative.
ἔργον