Recent works have shown that on the one hand Complementizers have nominal features (Sportiche (2008); Kayne (2010); Manzini-Savoia (2011)), on the other their morpho-syntax can encode Aspect, Tense and Modality values, agreement, illocutive and other features (see among many others Bayer (1984), Bhatt and Yoon (1992), Haegeman (1992), Van Craenenbroeck & Van Koppen (2003), Ledgeway (2005), Aboh (2