"This research explores one of the problems that LEI students at the Faculty of Languages of the Benemérita Universidad Autónoma de Puebla BUAP face regarding language transfer during the acquisition of French as a third language. Arising from this situation, three research questions are proposed with the objective to describe the learning process as well as the phenomenon of transfer in LEI students. To collect the data, observations were made of a group of nine students taking French level four at CELE"