Learn the common German prepositions and their usage. The nouns and pronouns which are modified by a preposition will always be in either the accusative, dative or genitive case. Pavett PRP uses a set of flashcards to teach you meanings and case associations through the simple flash cards. The app records your successes and failures and uses a memory engine to ensure the cards you have learnt and the cards that you have not. The app teaches the prepositions and their meanings, the case association and simple example sentences.