the persian morpheme ra has attracted the attention of many linguists including karimi (1989), dabir-moghaddam (1990) and ghomeshi (1996) among others. karimi takes ra as the accusative case marker, the presence of which on subjects and objects of prepositions render the sentence ungrammatical. according to ghomeshi (1996), it marks dps functioning as vp-level topics. dabir-moghaddam (1990) ana...