How much syntax is there in metalinguistic negation?

This paper explores the syntax of unambiguous metalinguistic negation (MN) markers in European Portuguese (EP) with the main goal of demonstrating the syntactic import of MN. Taking the EP facts as a means to gain insight into the grammatical encoding of MN in natural language, the paper shows that unambiguous MN markers split into two types: peripheral and internal. This split is confirmed by their contrasting behavior with respect to different syntactic tests, e.g., availability in isolation and nominal fragments; ability to take scope over negation and emphatic/contrastive high constituents; compatibility with VP Ellipsis. Peripheral MN markers respond positively to all the tests, whereas internal ones respond negatively. These facts are derived from a syntactic analysis where CP plays a central and unifying role. It is proposed that while the cross-linguistically pervasive peripheral MN markers directly merge into Spec,CP, the more unusual sentence-internal MN markers are rooted in the TP domain and reach Spec,CP by movement. The centrality of the CP field is motivated by elaborating on Farkas and Bruce’s (2010) model of polarity features. Under the hypothesis that besides the relative polarity features [same] and [reverse], there is a feature [objection] that singles out MN declaratives among responding assertions, this is taken to be the edge feature that drives unambiguous MN markers into the CP space.