| Singular | Plural | |
|---|---|---|
| Nominativ | spongea, spongea | spongeae, spongeae |
| Genitiv | spongeai, spongeai, spongeae, spongeae | spongearum, spongeum, spongearum, spongeum |
| Dativ | spongeae, spongeai, spongeai, spongeae | spongeabus, spongeis, spongeabus, spongeis |
| Akkusativ | spongeam, spongeam | spongeas, spongeas |
| Ablativ | spongea, spongead, spongea, spongead | spongeabus, spongeis, spongeabus, spongeis |
| Vokativ | spongea, spongea | spongeae, spongeae |