Based on an earlier edition published in 1992 in Bulgarian, this book offers a specific approach to one of the most controversial problems in linguistics. According to it, aspect is the result of a subtle and complex interplay between the referents of verbs and nouns in the sentence. This volume is of interest to researchers of aspect and related problems, theoretical and applied linguists, psycholinguists, philosophers of language, graduate students of general linguistics, English (Germanic), and Bulgarian (Slavic).