| Systemlehre | Nominativ, Singular | nominative case, singular | |
| Systemlehre | Genitiv, Singular | genitive case, singular | |
| Systemlehre | Dativ, Singular | dative case, singular | |
| Systemlehre | Akkusativ, Singular | accusative case, singular | |
| Systemlehren | Nominativ, Plural | nominative case, plural | |
| Systemlehren | Genitiv, Plural | genitive case, plural | |
| Systemlehren | Dativ, Plural | dative case, plural | |
| Systemlehren | Akkusativ, Plural | accusative case, plural |