This paper is a critical examination of Vendler's well-known aspectual classes (states, activities, accomplishments, achievements). It is argued that it not classes that play a role in the explanation of aspectual phenomena but rather some specific semantic factors from which aspectual classes can be constructed, in particular factors inherent to the (lexical) verb and to the determiners of noun phrases.

The purpose of this article is to show a structural relationship in Dutch between sentences with the main verb "duren" (last) and specifying complements such as een week (a week) or "drie kwartier" (three quarters of an hour) on the one hand, and sentences with Duration Measuring Adverbials such as "gedurende een week" (for a week), "gedurende die week" (lit: for that week) on the other.

This paper is a reply to a reaction to our joint paper Measuring Duration in Dutch (1971).

Topic of this paper is the way in which the structure of events features in discourse. We focus on the structure as introduced by verbs that express some sense of progress. First it is shown by means of examples that this structure is anaphorically available in discourse. Then we go on to discuss the different ways in which the same event may be structured within one discourse situation. We give formal representations of the crucial examples in many-sorted dynamic logic.