Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | perfīdens |
| Gen. | perfidentis |
| Dat. | perfidenti |
| Acc. | perfidentem |
| Abl. | perfidenti |
| Voc. | perfīdens |
| PLURIEL |
| Nom. | perfidentes |
| Gen. | perfidentĭum |
| Dat. | perfidentĭbus |
| Acc. | perfidentes |
| Abl. | perfidentĭbus |
| Voc. | perfidentes |
| SINGULIER |
| Nom. | perfīdens |
| Gen. | perfidentis |
| Dat. | perfidenti |
| Acc. | perfidentem |
| Abl. | perfidenti |
| Voc. | perfīdens |
| PLURIEL |
| Nom. | perfidentes |
| Gen. | perfidentĭum |
| Dat. | perfidentĭbus |
| Acc. | perfidentes |
| Abl. | perfidentĭbus |
| Voc. | perfidentes |
| SINGULIER |
| Nom. | perfīdens |
| Gen. | perfidentis |
| Dat. | perfidenti |
| Acc. | perfīdens |
| Abl. | perfidenti |
| Voc. | perfīdens |
| PLURIEL |
| Nom. | perfidentĭa |
| Gen. | perfidentĭum |
| Dat. | perfidentĭbus |
| Acc. | perfidentĭa |
| Abl. | perfidentĭbus | |