"As well as providing a clear introduction to the subject, this excellent book extends our knowledge of the lexical aspectual properties of verbs and verb phrases in new and original directions. Rothstein's careful exploitation of the flexibility of event-based semantics in providing a solid foundation for the interpretation of verbal aspect establishes the theory as central to any explanation of this often difficult – but ever fascinating – topic." Ronnie Cann, University of Edinburgh

"This outstanding book represents a new breakthrough in the general theory of lexical aspect. The discussions of the previous research are distinguished by clarity as well as new challenges and insights. In a highly engaging way Rothstein also advances new solutions to some of the most thorny issues – including aspectual shifts, progressive achievements, and resultative predication – which will shape the future research in lexical aspect." Hana Filip, Stanford University

"Rothstein’s book contains many observations, deep intuitions and exciting analyses which will doubtless be very influential in a variety of areas. Empirically, the book contains a treasure trove of interesting data that will no doubt be mulled over for years to come." Lingua