 Dowty analyzes the progressive as an intensional construction. Does the progressive satisfy the standard philosophical tests for intensional constructions, that is, the invalidity of substitution of co-designative proper names and the impossibility of pulling the existential quantifier out of the context created by the intensional construction (see Bealer and Mönnich (1989) for a more detailed discussion)? Let us consider accomplishments, for example sentence (25). 