The third declension consists of nouns in all three genders.
The masculine and feminine nouns decline in the same way, but the neuter nouns decline differently.
You can find the stem of a third declension noun by removing the -is in its singular genitive form.
rex, regis, m. (king)
| Singular | Plural | |||
|---|---|---|---|---|
| Nominative | rex | regēs | ||
| Genitive | regis | regum | ||
| Dative | regī | regibus | ||
| Accusative | regem | regēs | ||
| Ablative | rege | regibus | ||
| Vocative | rex | regēs |
tempus, temporis, n. (time)
| Singular | Plural | |||
|---|---|---|---|---|
| Nominative | tempus | tempora | ||
| Genitive | temporis | temporum | ||
| Dative | temporī | temporibus | ||
| Accusative | tempus | tempora | ||
| Ablative | tempore | temporibus | ||
| Vocative | tempus | tempora |