Record your Agree: A case study of the Arabic complementizerʔinn

Abstract

This research investigates the morpho-syntactic behaviour of the Arabic complementizerʔinnin a range of Arabic varieties (Modern Standard Arabic, Jordanian Arabic, and Lebanese Arabic). It essentially argues that this complementizershares(notdonatesorkeeps,paceOuali 2008, 2011) its unvalued$\unicode[STIX]{x1D719}$-features with its complement$\text{T}^{0}$, something that makesʔinnand$\text{T}^{0}$separate agreeing heads. An inflectional suffix attached toʔinnis treated as a PF reflex (i.e. an overt morphological realization) of valuation ofʔinn’s unvalued$\unicode[STIX]{x1D719}$-features or lack thereof. This research also argues that the occurrence of such an inflectional suffix is ruled by the postulatedAgree Chain Record, an interface condition that demands an Agree relation to have a PF reflex, called aRecord(i.e. an overt Case marking on the goal or, if not, a$\unicode[STIX]{x1D719}$-affix on the probe). This way, we account for the complementary distribution of overt Case and$\unicode[STIX]{x1D719}$-Agree in Arabic. We also show how a host of other phenomena, including word order agreement asymmetries in Modern Standard Arabic and lack of such asymmetries in Arabic vernaculars, fares well with this view.