| Singular | Plural | |
|---|---|---|
| Nominativ | cocursus, concursusque, concursus | concursus, cocursus, concursusque, concursuus |
| Genitiv | concursus, cocursus, concursusque | concursuum |
| Dativ | concursui | concursibus, concursubus |
| Akkusativ | concursumque, concursum | concursus, cocursus, concursusque, concursuus |
| Ablativ | concursu, concursuque | concursibus, concursubus |
| Vokativ | cocursus, concursusque, concursus | concursus, cocursus, concursusque, concursuus |