| Sg. indefinite | regionaltog |
| Sg. definite | regionaltoget |
| Pl. indefinite | regionaltog; regionaltoge |
| Pl. definite | regionaltogene |
| Sg. indefinite | regionaltogs |
| Sg. definite | regionaltogets |
| Pl. indefinite | regionaltogs; regionaltoges |
| Pl. definite | regionaltogenes |