Accusativo/dativo nei sintagmi preposizionali: le grammatiche didattiche DaF

Primary, prototypical prepositions in German govern accusative and dative. The difference between the two cases is semantically motivated, not only for the prepositions governing two cases (an, auf, hinter, in, neben, über, unter, vor, zwischen), but also for prepositions allowing one option: accusative for bis, durch, für, gegen, ohne, um; dative for ab, aus, bei, mit, nach, seit, von, zu. Accusative appears to be associated with goal-orientedness and completeness, the dative represents an elsewhere condition