What does CASE GRAMMAR stand for? 

Case grammar

Case grammar is a system of linguistic analysis, focusing on the link between the valence, or number of subjects, objects, etc., of a verb and the grammatical context it requires. The system was created by the American linguist Charles J. Fillmore in the context of Transformational Grammar (1968). This theory analyzes the surface syntactic structure of sentences by studying the combination of deep cases (i.e. semantic roles, such as Agent, Object, Benefactor, Location or Instrument etc.) which are required by a specific verb. For instance, the verb "give" in English requires an Agent (A) and Object (O), and a Beneficiary (B); e.g. "Jones (A) gave money (O) to the school (B). According to Fillmore, each verb selects a certain number of deep cases which form its case frame. Thus, a case frame describes important aspects of semantic valency of verbs, adjectives and nouns. Case frames are subject to certain constraints, such as that a deep case can occur only once per sentence. Some of the cases are obligatory and others are optional. Obligatory cases may not be deleted, at the risk of producing ungrammatical sentences. For example, Mary gave the apples is ungrammatical in this sense.

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