| Nominativ | gyrus, gyrus | gyri, gyri |
| Genitiv | gyri, gyri | gyrum, gyrorum, gyrorum, gyrum |
| Dativ | gyro, gyro, gyrovagus, giro | gyris, gyris |
| Akkusativ | gyrum, gyrom, gyrom, gyrum | gyros, gyros |
| Ablativ | gyro, gyro, gyrovagus, giro | gyris, gyris |
| Vokativ | gyre, gyre | gyri, gyri |
