“…τετράφαται). As noted by Chantraine (1991Chantraine ( [1945:306), however, in fifth-century Attic Greek these alternative desinences (i.e. -αται, -ατο) fell into disuse, and periphrastic εἰµί with perfect participle was adopted as an alternative formation (in other words, it was drawn into the inflectional system).…”