| Singular | Plural | |
|---|---|---|
| Nominativ | patriarches | patriarchae |
| Genitiv | patriarchae, patriarchai | patriarchum, patriarcharum |
| Dativ | patriarchae, patriarchai | patriarchabus, patriarchis |
| Akkusativ | patriarcham, patriarchen | patriarchas |
| Ablativ | patriarche, patriarcha | patriarchabus, patriarchis |
| Vokativ | patriarche, patriarcha | patriarchae |