Regimes of Derivation in Syntax and Morphology presents a theory of the architecture of the human linguistic system that differs from all current theories on four key points. First, the theory rests on a modular separation of word syntax from phrasal syntax, where word syntax corresponds roughly to what has been called derivational morphology. Second, morphosyntax (corresponding to what is traditionally called "inflectional morphology") is the immediate spellout of the syntactic merge operation, and so there is no separate morphosyntactic component. There is no LF (logical form) derived;...