| Singular | Plural | |
|---|---|---|
| Nominativ | administra | administrae |
| Genitiv | administrae, administrai | administrarum |
| Dativ | administrae, administrai | administris, administrabus, administrisque |
| Akkusativ | administram | administras |
| Ablativ | administrad, administra | administrisque, administris, administrabus |
| Vokativ | administra | administrae |