The main purpose of this study is to identify the structural characteristics of the verb classes
as they appear in the first productions of Italian children. Our hypothesis is that also in the
early stage the loci of generation of subjects influence the productions of the VPs: the
differences with adults are linked to the presence of an overt object and to its aspectual
interpretation. We provide in this respect: 1) the distribution and the position of overt subjects
along verb classes 2) the distribution of perfective auxiliaries across verb classes: the
interaction between the auxiliaries and the telicity encoded at VP level.
