Intensionality and extraction as reflexes of syntactic structure

In the sententialist view of intensionality, intensionality arises only in bi-clausal contexts. However, not all bi-clausal contexts give rise to intensionality, and the level of intensionality can vary. Non-factives display full intensional properties, factives are only partially intensional, and temporal adverbial constructions have no intensional properties. We argue that these three levels of intensionality are associated with different syntactic structures. Extraction data provide support for this three way syntactic division. We argue that three levels of intensionality are present at the DP level as well.