A.        First or A-  Pattern

B.        Second or O-  Pattern

            Sing.

            Plur.

            Sing.

            Plur.

Nom

-α

-η

-ης*

-αι

Nom

-ος

-ον

-οι

-α

Gen

-ας

-ης

-ου

-ων

Gen

-ου

-ων

Dat

-ᾳ

-ῃ

-αις

Dat

-ῳ

-οις

Acc

-αν

-ην

-ας

Acc

-ον

-ους

-α

C.        Third or Consonant Pattern

            Sing.

Plur.

Nom

___**

-ες / -εις

-α

Gen

-ος/-ως/-ους

-ων

Dat

-ι

-σι

Acc

-α /-ιν

-ας / -εις

-α

              *              - Masculine nouns of first declension

              **           - Nom. sing. ending varies in 3rd declension

                    - Variations for neuter; same endings in nom. and accus.

II.                    ADJECTIVES            [Adjectives mix First, Second, and Third Pattern Endings to indicate Masc, Fem, or Neut Gender]

                                                                                                                                                (Masc.  ---  Fem. ---  Neut)                                                                                                                                  (Masc.  ---  Fem. ---  Neut)

      A.        Definite Article  (uses adjective pattern B. below with minor variations)

Nom

ὁ

ἡ

τό

οἱ

αἱ

τά

Gen

τοῦ

τῆς

τοῦ

τῶν

τῶν

τῶν

Dat

τῷ

τῇ

τῷ

τοῖς

ταῖς

τοῖς

Acc

τόν

τήν

τό

τούς

τάς

τά

      B.         Adjectives mixing Second + First + Second Pattern (most common)

Nom

-ος

-α

η

-ον

ο

-οι

-αι

-α

Gen

-ου

-ας

ης

-ου

-ων

-ων

-ων

Dat

-ῳ

-ᾳ

ῃ

-ῳ

-οις

-αις

-οις

Acc

-ον

-αν

ην

-ον

ο

-ους

-ας

-α

      C.        Adjectives mixing Third + First + Third Pattern (note especially: used by Active Voice Participle)

Nom

---**

-α

---**

-ες

-αι

-α

Gen

-ος

-ας

ης

-ος

-ων

-ων

-ων

Dat

-ι

-ᾳ

ῃ

-ι

-σι

-αις

-σι

Acc

-α

-αν

---**

-ας

-ας

-α

      D.        Adjectives using only Third Pattern  (least common; typically uses same endings for masc. & fem.)

Nom

-ής

-ές

-εῖς

-ῆ

Gen

-οῦς

-οῦς

-ῶν

-ῶν

Dat

-εῖ

-εῖ

-σι

-σι

Acc

-ῆ

-ές

-εῖς

-ῆ