出典:Wiktionary
First/second declension.
| Number | Singular | Plural | |||||
|---|---|---|---|---|---|---|---|
| Case / Gender | Masculine | Feminine | Neuter | Masculine | Feminine | Neuter | |
| Nominative | oblongus | oblonga | oblongum | oblongī | oblongae | oblonga | |
| Genitive | oblongī | oblongae | oblongī | oblongōrum | oblongārum | oblongōrum | |
| Dative | oblongō | oblongae | oblongō | oblongīs | oblongīs | oblongīs | |
| Accusative | oblongum | oblongam | oblongum | oblongōs | oblongās | oblonga | |
| Ablative | oblongō | oblongā | oblongō | oblongīs | oblongīs | oblongīs | |
| Vocative | oblonge | oblonga | oblongum | oblongī | oblongae | oblonga | |