Abstract 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.

中文翻译：

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标记的copular结构的接口分析：有句子的情况

摘要本文提出了一个存在性句子的界面描述，通过对这些句子及相关结构的语义，形态句法，语篇和韵律性质进行考察，以探讨其与其他类型的带有IS标记的共同结构的异同。特别地，提出了在存在物和裂隙之间，以及在（倒置的）位置和（倒置的）伪裂隙之间的结构并行性。在对存在结构的分析中，对确定性效应的研究表明，需要对各个句子进行区分。尤其是，相关结构的界面属性表明，应该为存在和表示的句子提供不同的分析，这些句子在各种分析级别上都表现出至关重要的形式不对称性。