1: Modularity in Underlying Structure.- 1.1 Introduction.- 1.2 On Defining Grammatical Relations in a Modular Theory.- 1.3 What is a Lexical Entry?.- 1.3.1 Overview.- 1.3.2 The Semantic Portion of a Lexical Entry: Lexical Conceptual Structure and the Definition of Thematic Roles.- 1.3.3 The Syntactic Portion of the Lexical Entry: Predicate Argument Structure (The Theta Grid).- 1.3.4 Summary.- 1.4 The Organization of Argument Structure: the Thematic Hierarchy.- 1.5 Case Theory and the Lexicon.- 1.6 S and S?: Extended X-bar Theory and the Lexical Clause Hypothesis.- 1.7 Dominance, Precedence and Phrase Markers.- Notes.- 2: Syntactic Projection and Licensing.- 2.1 Preliminaries: Licensing, the UTAH, the Projection Principle and the Theta Criterion.- 2.2 X-bar Theory and the Projection of Heads.- 2.2.1 Introduction.- 2.2.2 Formal and Informal Versions of X-bar Theory.- 2.2.3 Against Intermediate Bar Levels.- 2.2.4 Project Alpha.- 2.2.5 Consequences of Project Alpha.- 2.2.5.1 Automatic Pruning.- 2.2.5.2 No Restriction on Number of Specifiers.- 2.2.5.3 Adjuncts and Adjunction Structures.- 2.2.5.4 On Small Clauses.- 2.2.6 Licensing Grammars are not Phrase Structure Grammars.- 2.3 Licensing Non-head Daughters: Thematic Grids and Thematic Relations.- 2.3.1 Grids and Grid Relations.- 2.3.2 Deriving the UTAH: Projection and the Thematic Hierarchy.- 2.3.2.1 D-Structure and the Thematic Hierarchy.- 2.3.2.2 On the Structure of VP.- 2.3.2.3 A Tentative LCS-Based Account of the Dative Alternation.- 2.3.3 Mapping from Argument Structure to D-Structure.- 2.3.4 Agentive Predicates and the Projection of Empty Verbal Heads.- 2.3.5 Cognitive Categories and Syntactic Categories.- 2.3.6 On the Notion External Argument.- 2.3.6.1 Predication and Argument Prominence.- 2.3.6.2 How are External Arguments External?.- 2.3.6.3 On the Maximal Constituency of VP.- 2.4 Functional Categories and Licensing.- 2.5 Summary.- Notes.- 3: On Configurationality Parameters.- 3.1 Introduction.- 3.2 Parametricl£(