Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | cygneus |
| Gen. | cygnei |
| Dat. | cygneo |
| Acc. | cygneum |
| Abl. | cygneo |
| Voc. | cygnee |
| PLURIEL |
| Nom. | cygnei |
| Gen. | cygneōrum |
| Dat. | cygneis |
| Acc. | cygneos |
| Abl. | cygneis |
| Voc. | cygnei |
| SINGULIER |
| Nom. | cygneă |
| Gen. | cygneae |
| Dat. | cygneae |
| Acc. | cygneam |
| Abl. | cygneā |
| Voc. | cygneă |
| PLURIEL |
| Nom. | cygneae |
| Gen. | cygneārum |
| Dat. | cygneis |
| Acc. | cygneas |
| Abl. | cygneis |
| Voc. | cygneae |
| SINGULIER |
| Nom. | cygneum |
| Gen. | cygnei |
| Dat. | cygneo |
| Acc. | cygneum |
| Abl. | cygneo |
| Voc. | cygneum |
| PLURIEL |
| Nom. | cygnea |
| Gen. | cygneōrum |
| Dat. | cygneis |
| Acc. | cygnea |
| Abl. | cygneis | |