Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | coaevus |
| Gen. | coaevi |
| Dat. | coaevo |
| Acc. | coaevum |
| Abl. | coaevo |
| Voc. | coaeve |
| PLURIEL |
| Nom. | coaevi |
| Gen. | coaevōrum |
| Dat. | coaevis |
| Acc. | coaevos |
| Abl. | coaevis |
| Voc. | coaevi |
| SINGULIER |
| Nom. | coaevă |
| Gen. | coaevae |
| Dat. | coaevae |
| Acc. | coaevam |
| Abl. | coaevā |
| Voc. | coaevă |
| PLURIEL |
| Nom. | coaevae |
| Gen. | coaevārum |
| Dat. | coaevis |
| Acc. | coaevas |
| Abl. | coaevis |
| Voc. | coaevae |
| SINGULIER |
| Nom. | coaevum |
| Gen. | coaevi |
| Dat. | coaevo |
| Acc. | coaevum |
| Abl. | coaevo |
| Voc. | coaevum |
| PLURIEL |
| Nom. | coaeva |
| Gen. | coaevōrum |
| Dat. | coaevis |
| Acc. | coaeva |
| Abl. | coaevis | |