An interface analysis of marked copular constructions: The case of there-sentences

This paper proposes an interface account of existential sentences, in which the examination of the semantic, morphosyntactic, discourse and prosodic properties of these and related constructions is aimed to explore the similarities and differences with other types of IS-marked copular structures. In particular, a structural parallelism is proposed between existentials and clefts, as well as between (inverted) locatives and (inverted) pseudoclefts. In the analysis of existential constructions, the investigation of the Definiteness Effect reveals the need for a distinction across there-sentences; in particular, the interface properties of the relevant structures suggest that different analyses should be provided for existential and presentational there-sentences, which present crucial formal asymmetries at various levels of analysis.