The corpus Pereira&Freitas – EP was edited at PHONBANK (B. MacWhinney (Carnegie Mellon) and Y. Rose (University of Newfoundland)) and contains longitudinal naturalistic data from 5 Portuguese monolingual children aged 1;2 to 3;3, collected from 1993 to 1995.The data collection was supported by Fundação para Ciência e a Tecnologia (PCSH/C/LIN/524/93). This version of the corpus was supported by Fundação para Ciência e a Tecnologia (UID/LIN/00214/2019). The data files in this corpus are part of the Acquisition of European Portuguese Databank (AcEP – www.clul.ul.pt/en/research-teams/476-acquisition-of-european-portuguese- databank), in CLUL's research group Grammar & Resources. Additional longitudinal data on the acquisition of European Portuguese is available at: https://phonbank.talkbank.org/access/Romance/Portuguese/CCF.html.