FLOATING QUANTIFIERS, PRO, AND PREDICATION

This article presents evidence for the existence of PRO, for the locat ion of clausal subjects in the specifier position of V''s, for the con straint that requires that elements move only if required to do so by same principle of grammar (Chomsky's (1991) principle of ''movement as a last resort''), and for predication as a grammatical relation rathe r than a semantic concept. It also provides evidence against the idea, proposed by Chomsky and Lasnik (1993), that PRO is assigned a special null Case in the specifier position of to or -ing. The evidence comes from the occurrence of preverbs in English infinitives.