| Nominativ | amphitheatricum, amphitheatricus, amphitheatrica | amphitheatricae, amphitheatrici, amphitheatrica |
| Genitiv | amphitheatrici, amphitheatrici, amphitheatricae | amphitheatricorum, amphitheatricorum, amphitheatricarum |
| Dativ | amphitheatrico, amphitheatrico, amphitheatricae | amphitheatricis |
| Akkusativ | amphitheatricam, amphitheatricum, amphitheatricum | amphitheatricos, amphitheatricas, amphitheatrica |
| Ablativ | amphitheatrico, amphitheatrica, amphitheatrico | amphitheatricis |
| Vokativ | amphitheatricum, amphitheatrice, amphitheatrica | amphitheatricae, amphitheatrici, amphitheatrica |
