| Fehlermatrix | Nominativ, Singular | nominative case, singular | |
| Fehlermatrixe | Genitiv, Singular | genitive case, singular | |
| Fehlermatrixen | Dativ, Singular | dative case, singular | |
| Fehlermatrix(e)s | Akkusativ, Singular | accusative case, singular | |
| Fehlermatrixer | Nominativ, Plural | nominative case, plural | |
| Fehlermatrixern | Genitiv, Plural | genitive case, plural | |
| Fehlermatrixn | Dativ, Plural | dative case, plural |