The grammatically relevant aspectual types are activities, states, achievements and accomplishments. The class of causative verbs can be identified to the class of accomplishment verbs. The interpretations of stative verbs are more basic than the intepretations of other types of verbs.
States are some kind of unanalyzed primitives.
In this talk I examine the semantic properties of Finnish psychological causatives which challenge all of the assumptions above. The Vendler scheme, however, is not able to separate resultative telic verbs from non-resultative telic verbs.