... de-pends on the availability of non-perfective participles (Iatridou, Anag-nostopoulou and Izvorski 2001). Greek, for instance, obligatorily marksperfect participles as perfective, and as a result ... notpossible in this language. Bulgarian allows non-perfective (imperfective orneutral) perfect participles for all Aktionsarten, and these are employed toyield a Universal perfect reading, in ... that relates such analytic perfect structures to the cross-linguistic availability of perfect participles as reduced relatives.5. Semantic aspects are probably the syntactic specifier of AspP,...