| Clientfailback | Nominativ, Singular | nominative case, singular | |
| Clientfailback(e)s | Genitiv, Singular | genitive case, singular | |
| Clientfailbacken | Dativ, Singular | dative case, singular | |
| Clientfailbacke | Akkusativ, Singular | accusative case, singular | |
| Clientfailbacken | Nominativ, Plural | nominative case, plural |