| Singular | Plural | |
|---|---|---|
| Nominativ | plebecula | plebeculae |
| Genitiv | plebeculai, plebeculae | plebecularum, plebeculum |
| Dativ | plebeculae, plebeculai | plebeculis, plebeculabus |
| Akkusativ | plebeculam | plebeculas |
| Ablativ | plebecula, plebeculad | plebeculis, plebeculabus |
| Vokativ | plebecula | plebeculae |