| Modellversatz | Nominativ, Singular | nominative case, singular | |
| Modellversatze | Genitiv, Singular | genitive case, singular | |
| Modellversatzen | Dativ, Singular | dative case, singular | |
| Modellversatz(e)s | Akkusativ, Singular | accusative case, singular | |
| Modellversatzer | Nominativ, Plural | nominative case, plural | |
| Modellversatzern | Genitiv, Plural | genitive case, plural | |
| Modellversatzn | Dativ, Plural | dative case, plural |