Vzťah Prefixácie, Vidu a Valencie

Literature has pointed out to the existence of two kinds of aspectual prefixes in Slavic languages - external or superlexical and internal or lexical - which differ in the ability to mark telicity and alter argument structure. The study discusses the two kinds of prefixes in Slovak on the basis of scalarity underlying telicity. External prefixes are nonscalar, they express an event is bounded in time but not inherently delimited. They are ±telic and they do not alter argument structure. In contrast, internal prefixes are scalar, because they refer to a scale that measures the event. They are +telic because they denote a boundary on the scale. They can alter argument structure because the event participant measured by a scale must be obligatorily realized as subject or direct object. There are three cases of argument structure alternation: 1. an optionally transitive verb becomes an obligatorily transitive prefixed verb, 2. an intransitive verb becomes an obligatorily transitive prefixed verb with unselected direct object, 3. an intransitive verb becomes an obligatorily reflexive prefixed verb with unselected reflexive marker sa, which I consider a kind of direct object.