1: Theoretical Issues -- 1.1 Explaining Syntactic Universals and Syntactic Variation -- 1.2 Constraints on Phrase-Structure -- 1.3 Conditions on Movement: Deriving Locality -- 1.4 Motivating Syntactic Movement -- 1.5 Summary -- 2: Movement and Mutation Processes In Modern Irish -- 2.0 Introduction -- 2.1 The Scope of Verb-Movement in Irish -- 2.2 Unpacking INFL: The Preverbal Particle System -- 2.3 Mutation in Copular Constructions -- 2.4 Summary -- 3: Conspicuous Absences: Mutation & Extraction In Negated Contexts -- 3.0 Introduction -- 3.1 The Problem of Gan: Mutation And Extraction -- 3.2 Relative Clauses, Narrative Fronting and Topicalization in Irish -- 3.3 Conclusion -- 4: Visible Arguments: Theta-Government And Case In Ulster Irish -- 4.0 Introduction -- 4.1 Deriving SOVX word order -- 4.2 Theta-marking and Extraction in Progressive Contexts -- 4.3 Non-Finite Word-Order and Object Agreement in Southern Dialects -- 4.4 Summary -- 5: Irish Noun Phrases -- 5.0 Introduction -- 5.1 Construct State Nominals and DP Projections -- 5.2 Summary -- References -- Index of Names and Subjects