Chapter 4 sketches how the contribution of ordinary language philosophers like Ryle, Kenny and Vendler to linguistic semantics has added to persistent terminological confusion. Their delivery of the Aristotelian legacy to linguistics consists of a sort of naive physical ontology at the cost of the principle of compositionality. The misleading translation of Greek verb forms occurring in the crucial passus of Metaphysics 1048b into the English Progressive Form will be argued to have been decisive for what natural (language) philosophy handed to linguists: an outdated vision on motion. The chapter also sketches the heavy work of a verb in taking all sorts of different arguments and argues that features are insufficient for the semantics of tense and aspect: they should be used as abbreviatory and for convenience only.

Chapter 2 corrects the tendency to let any serious theory of tense start in 1947 with the publication of Reichenbach (1947). It is absolutely necessary to connect the current theory of tense with classical grammar in order to take into account the aorist or its current descendants. This leads to a discussion of different ternarily organized tense systems as part of a closer inspection of notions like point, interval, fleeting ??, landmark, etc. This prepares the way for showing which sort of role they have in a binary approach. The chapter also gives a sketch of the so-called present perfect puzzle preparing for a solution in Chapter 6.