Because clauses and negative polarity licensing

In this paper, I investigate the interaction of clause-modifying adjuncts, such as because clauses, with negation and the licensing of negative polarity items. I show how an account in which because clauses are adjuncts which can be basegenerated adjoined to either IP or VP explains the ambiguity of examples containing because clauses and negation, and how, in conjunction with the roofing theory of negative polarity licensing (Ladusaw 1992), this assumption explains the licensing of negative polarity items in because clause constructions. I then show how an extension of the analysis in Kadmon and Landman 1993 accounts for the NPIs which can appear within the because clause.