Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | triennis |
| Gen. | triennis |
| Dat. | trienni |
| Acc. | triennem |
| Abl. | trienni |
| Voc. | triennis |
| PLURIEL |
| Nom. | triennes |
| Gen. | triennĭum |
| Dat. | triennĭbus |
| Acc. | triennes |
| Abl. | triennĭbus |
| Voc. | triennes |
| SINGULIER |
| Nom. | triennis |
| Gen. | triennis |
| Dat. | trienni |
| Acc. | triennem |
| Abl. | trienni |
| Voc. | triennis |
| PLURIEL |
| Nom. | triennes |
| Gen. | triennĭum |
| Dat. | triennĭbus |
| Acc. | triennes |
| Abl. | triennĭbus |
| Voc. | triennes |
| SINGULIER |
| Nom. | trienne |
| Gen. | triennis |
| Dat. | trienni |
| Acc. | trienne |
| Abl. | trienni |
| Voc. | trienne |
| PLURIEL |
| Nom. | triennĭa |
| Gen. | triennĭum |
| Dat. | triennĭbus |
| Acc. | triennĭa |
| Abl. | triennĭbus | |