| Seifenbaum | Nominativ, Singular | nominative case, singular | |
| Seifenbaum(e)s | Genitiv, Singular | genitive case, singular | |
| Seifenbaum | Dativ, Singular | dative case, singular | |
| Seifenbaum | Akkusativ, Singular | accusative case, singular | |
| Seifenbäume | Nominativ, Plural | nominative case, plural | |
| Seifenbäume | Genitiv, Plural | genitive case, plural | |
| Seifenbäumen | Dativ, Plural | dative case, plural | |
| Seifenbäume | Akkusativ, Plural | accusative case, plural |