Reassessing pseudosluicing in Austronesian

Pseudosluicing diagnostics have played an important role in wider debates about sluicing. Sluicing is the term used to describe the deletion of an embedded clausal constituent, which leaves only a wh‐phrase overt. Genuine sluicing requires syntactic or semantic identity between the sluiced clause and its antecedent, contrasting with pseudosluicing, in which pro‐drop creates the appearance of a sluice but no identity is required. The underlying structure of sluicing in several Austronesian languages has been argued to be pseudoclefts, which involve a nominal wh‐predicate and a headless relative clause argument. Both Malagasy and Nukuoro have been analysed as having pseudocleft sluicing, and on the basis of this, claims about the type of identity required in sluicing have been made. Both analyses rely on diagnostics that rule out the possibility of pseudosluicing. This paper reexamines the pseudosluicing diagnostics used for Malagasy and Nukuoro and concludes that they have been insufficiently controlled for. This is supported by data from Madurese showing that pseudosluicing diagnostics are inconclusive in these Austronesian languages. Language‐internal support is needed for such diagnostics, especially as they play an important role in the conclusions drawn from Austronesian languages on the wider identity requirement for sluicing. Three language‐specific diagnostics are given which are successfully able to identify pseudosluicing in Madurese.