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All 5 noun declensions — Grammar Stage Latin
| Case | 1st Dec. | 2nd Dec. | 3rd Dec. | 4th Dec. | 5th Dec. | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Sg. | Pl. | Sg. | Pl. | Sg. | Pl. | Sg. | Pl. | Sg. | Pl. | |
| Nominative(Subject) | -a | -ae | -us | -ī | — (various) | -ēs | -us | -ūs | -ēs | -ēs |
| Genitive(Possessive) | -ae | -ārum | -ī | -ōrum | -is | -um | -ūs | -uum | -eī | -ērum |
| Dative(Indirect Object) | -ae | -īs | -ō | -īs | -ī | -ibus | -uī | -ibus | -eī | -ēbus |
| Accusative(Direct Object) | -am | -ās | -um | -ōs | -em | -ēs | -um | -ūs | -em | -ēs |
| Ablative(Various) | -ā | -īs | -ō | -īs | -e | -ibus | -ū | -ibus | -ē | -ēbus |
Gender: Feminine (mostly) • Model: mensa (table)
| Case | Singular | Plural |
|---|---|---|
| Nominative(Subject) | -a | -ae |
| Genitive(Possessive) | -ae | -ārum |
| Dative(Indirect Object) | -ae | -īs |
| Accusative(Direct Object) | -am | -ās |
| Ablative(Various) | -ā | -īs |
Gender: Masculine (-us) • Model: servus (servant)
Neuter 2nd declension nouns (-um) use the same endings except: nominative -um, accusative -um, and plural nominative/accusative -a.
| Case | Singular | Plural |
|---|---|---|
| Nominative(Subject) | -us | -ī |
| Genitive(Possessive) | -ī | -ōrum |
| Dative(Indirect Object) | -ō | -īs |
| Accusative(Direct Object) | -um | -ōs |
| Ablative(Various) | -ō | -īs |
Gender: Masculine / Feminine • Model: rex (king)
Neuter 3rd declension nouns have identical nominative and accusative forms, and their plural nominative/accusative ends in -a.
| Case | Singular | Plural |
|---|---|---|
| Nominative(Subject) | — (various) | -ēs |
| Genitive(Possessive) | -is | -um |
| Dative(Indirect Object) | -ī | -ibus |
| Accusative(Direct Object) | -em | -ēs |
| Ablative(Various) | -e | -ibus |
Gender: Masculine (-us) • Model: exercitus (army)
Neuter 4th declension nouns (-ū) use the same endings except: nominative -ū, accusative -ū, and plural nominative/accusative -ua.
| Case | Singular | Plural |
|---|---|---|
| Nominative(Subject) | -us | -ūs |
| Genitive(Possessive) | -ūs | -uum |
| Dative(Indirect Object) | -uī | -ibus |
| Accusative(Direct Object) | -um | -ūs |
| Ablative(Various) | -ū | -ibus |
Gender: Feminine (mostly) • Model: rēs (thing)
| Case | Singular | Plural |
|---|---|---|
| Nominative(Subject) | -ēs | -ēs |
| Genitive(Possessive) | -eī | -ērum |
| Dative(Indirect Object) | -eī | -ēbus |
| Accusative(Direct Object) | -em | -ēs |
| Ablative(Various) | -ē | -ēbus |