The distribution of the subjects in early Italian productions is used to retrieve information about the grammatical knowledge of children. We performed a cross-sectional study of 59 children’s productions (age 22/35 months) and a longitudinal study of 4 children’s utterances (age 18/39 months). The subject use is analysed in * copula versus lexical verbs. * unaccusative versus unergative/transitive. The overt subjects were analized for: * the nominal/pronominal status. * the pre/ post verbal position. We found that the subject use is greater with copula than main verbs and with unaccusative than unergative verbs and that SV order is preferred with “to be”, “transitive” and “unergative” verbs, while VS order with “unaccusative” verbs. These findings suggest that children distinguish between copula and lexical verbs and between “unergative” and “unaccusative” verbs, showing that the subject of the unaccusative verbs is generated in internal argument position
