Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | trigonalis |
| Gen. | trigonalis |
| Dat. | trigonali |
| Acc. | trigonalem |
| Abl. | trigonali |
| Voc. | trigonalis |
| PLURIEL |
| Nom. | trigonales |
| Gen. | trigonalĭum |
| Dat. | trigonalĭbus |
| Acc. | trigonales |
| Abl. | trigonalĭbus |
| Voc. | trigonales |
| SINGULIER |
| Nom. | trigonalis |
| Gen. | trigonalis |
| Dat. | trigonali |
| Acc. | trigonalem |
| Abl. | trigonali |
| Voc. | trigonalis |
| PLURIEL |
| Nom. | trigonales |
| Gen. | trigonalĭum |
| Dat. | trigonalĭbus |
| Acc. | trigonales |
| Abl. | trigonalĭbus |
| Voc. | trigonales |
| SINGULIER |
| Nom. | trigonale |
| Gen. | trigonalis |
| Dat. | trigonali |
| Acc. | trigonale |
| Abl. | trigonali |
| Voc. | trigonale |
| PLURIEL |
| Nom. | trigonalĭa |
| Gen. | trigonalĭum |
| Dat. | trigonalĭbus |
| Acc. | trigonalĭa |
| Abl. | trigonalĭbus | |