On the Dynamics in the Casual and Prepositional System of the Contemporary Slovak

The presented paper deals with the dynamics (in a sense of proceeding changes) in the casual and prepositional system of the contemporary Slovak language. The changes in the semantic and syntactic function are noticed in the valence positions with not-fixed casual forms, which are related to the primary semantic cases - dative, locative and instrumental. These dynamics or changes are caused both by language-internal and language-external (i.e. - in case of Slovak - mainly contact with the Czech language) factors. In many cases more than one type of motivation may lie at the root of the morpho-syntactic changes. A certain role in the spreading of some morpho-syntactic innovations as the "language pattern" is played by the media.