I-IV -- Preface -- List of abbreviations -- Chapter One Introduction -- Chapter Two Do up to the fifteenth century -- Chapter Three Do and discourse structure -- Chapter Four Syntax and style in the sixteenth century -- Chapter Five The semantics of do in the fifteenth and sixteenth centuries -- Chapter Six Unity and diversity: style, dialect and the semantics of do before 1600 -- Chapter Seven Do in the Shakespeare Corpus -- Chapter Eight Do in questions in the sixteenth and seventeenth centuries: The statistical evidence -- Chapter Nine The mechanics of generalization -- Chapter Ten Third singular morphology and syntax -- Chapter Eleven Subjunctive -- Chapter Twelve Wh questions -- Chapter Thirteen Natural and social aspects -- Conclusion -- Appendix 1 -- Appendix 2 -- Appendix 3 (Chapters 7 & 8) -- Notes -- Bibliography -- Index -- 445-446