Lexical aspect

Semantic way in which a verb is structured in relation to time

In linguistics, the lexical aspect or Aktionsart of a verb is part of the way in which that verb is structured in relation to time. For example, the English verbs arrive and run differ in their lexical aspect since the former describes an event which has a natural endpoint while the latter does not. Lexical aspect differs from grammatical aspect in that it is an inherent semantic property of a predicate, while grammatical aspect is a syntactic or morphological property. Although lexical aspect need not be marked morphologically, it has downstream grammatical effects, for instance that arrive can be modified by "in an hour" while believe cannot.

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