Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | Cygneius |
| Gen. | Cygneii |
| Dat. | Cygneio |
| Acc. | Cygneium |
| Abl. | Cygneio |
| Voc. | Cygneie |
| PLURIEL |
| Nom. | Cygneii |
| Gen. | Cygneiōrum |
| Dat. | Cygneiis |
| Acc. | Cygneios |
| Abl. | Cygneiis |
| Voc. | Cygneii |
| SINGULIER |
| Nom. | Cygneiă |
| Gen. | Cygneiae |
| Dat. | Cygneiae |
| Acc. | Cygneiam |
| Abl. | Cygneiā |
| Voc. | Cygneiă |
| PLURIEL |
| Nom. | Cygneiae |
| Gen. | Cygneiārum |
| Dat. | Cygneiis |
| Acc. | Cygneias |
| Abl. | Cygneiis |
| Voc. | Cygneiae |
| SINGULIER |
| Nom. | Cygneium |
| Gen. | Cygneii |
| Dat. | Cygneio |
| Acc. | Cygneium |
| Abl. | Cygneio |
| Voc. | Cygneium |
| PLURIEL |
| Nom. | Cygneia |
| Gen. | Cygneiōrum |
| Dat. | Cygneiis |
| Acc. | Cygneia |
| Abl. | Cygneiis | |