Introduction: the modules of Perfect constructions / Artemis Alexiadou, Monika Rathert and Arnim von Stechow -- Participles and voice / Elena Anagnostopoulou -- Temporal homogeneity and the Italian Perfect / Fabrizio Arosio -- Arabic Perfect and temporal adverbs / Abdelkader Fassi Fehri -- A puzzle about until and the Present Perfect / Anastasia Giannakidou -- A little bit more on the English Perfect / Sabine Iatridou -- Observations about the form and meaning of the Perfect / Sabine Iatridou, Elena Anagnostopoulou and Roumyana Pancheva -- On the stativity of the English Perfect / Graham Katz -- Tense, aspect, and the Greek Perfect / Amalia Moser -- Seit-adverbials in Perfect constructions / Renate Musan