| Sg. indefinite | natherberg |
| Sg. definite | natherberget |
| Pl. indefinite | natherberger; natherberg |
| Pl. definite | natherbergerne; natherbergene |
| Sg. indefinite | natherbergs |
| Sg. definite | natherbergets |
| Pl. indefinite | natherbergers; natherbergs |
| Pl. definite | natherbergernes; natherbergenes |