The intention of this study is, through a phenomenographic method, to see how students in a Swedish upper secondary school perceive the accusative object in German as a foreign language. Through descriptions of these various perceptions, three outcome areas were identified. These were understanding or no or little understanding of the accusative or the accusative object. These outcome areas were further divided into subcategories, corresponding to the students’ own way of expression.  The outcome of the study is, that there are indeed various forms of perceptions among the students. All perceptions however funnel down to a common understanding, with few exceptions, when the students were asked to explain the accusative object, as opposed to when they were shown example sentences containing an accusative object.  The study also shows that the results can be beneficial for teachers of German as a foreign language, in the sense of mapping the understanding of the students. Thus, this understanding can give teachers a ground for creating a deeper and better understanding of the accusative object and the accusative.

Adverbiale Kasus sind Substantivgruppen ohne Präposition, die im Satz die Funktion einer temporalen, lokalen oder modalen Adverbialbestimmung erfüllen. Im Satz treten sie in der Regel als Adjunkte auf und sind in ihrer Form syntaktisch unabhängig. Das Ziel der vorliegenden Dissertation ist, adverbiale Kasus des Deutschen anhand zahlreicher Belege sowohl synchron als auch diachron aus verschiedenen Perspektiven zu beschreiben. In den älteren Sprachstufen sind adverbiale Kasus häufig belegt. Bis zum Gegenwartsdeutschen wurden viele davon adverbialisiert, durch Präpositionalphrasen ersetzt oder sind zu Phraseologismen erstarrt. In dieser Arbeit wird auf die semantisch-lexikalischen Restriktionen, Struktur, interne Ausfüllung bzw. Besetzung, Bezugsmöglichkeiten, Bedeutungen und die stilistischen Besonderheiten adverbialer Kasus ausführlich eingegangen. / Adverbial case is a noun phrase without preposition, functioning as the adverbial modifier of time, place or manner in a sentence. Syntactically they usually serve as adjuncts and are independent in their form. The aim of the present investigation was to describe the German adverbial case synchronically and diachronically on the basis of a large number of speech samples from different points of view. Adverbial cases have been very frequent at the earlier stages of German. Many of them have been adverbialised, replaced by prepositional phrases or have turned into phraseologisms in the course of language development up to the modern German. The present doctor thesis provides a detailed study of the lexical-semantic restrictions of the adverbial cases as well as of their structure and inner filling, their relation to other sentence constituents, aspects of their meaning and stylistic peculiarities.