Mismatches and Mitigation at CS-PF Interface: The Curious Case of li

Taking the domain of polar questions in Bosnian/Croatian/Montenegrin/Serbian (BCMS) as the empirical background, the paper probes into the syntax–phonology (CS-PF) interface and discusses insertion and movement as PF-repair strategies mitigating against the lack of convergence at PF. Contra previous accounts, the analysis treats li (lexicalization of Q) as a ‘run-of-the-mill’ 2P clitic in BCMS, whose host cannot always be provided by syntax. I provide evidence against Prosodic Inversion—‘the usual suspect’ for post-syntactic movement in Slavic—thus adding to the body of evidence that Prosodic Inversion does not take place in BCMS. I argue that the PF Movement in such cases has to be raising and adopt Local Dislocation to account for them. Probing into the interaction between Future I and polar questions provides further insights into the ordering of PF Movement operations in BCMS.