Pre-service teachers in Spain play a pivotal role in the multilingual turn in education. While research has confirmed the benefits of using pedagogical translanguaging in developing learners’ multilingual competence, practical examples of its implementation within teacher training courses remain scarce. Considering this gap, this teaching proposal aims to address the lack of classroom-based examples and employs translanguaging pedagogy as a frame of reference to enhance first-year preschool trainee teachers’ English communicative competence at the University Jaume I (Castelló, Spain). In this way, learners’ language awareness will be improved by using the languages that form their whole language repertoire alongside their linguistic experiences to deepen their understanding of English. The development of planned teaching strategies and multilingual activities is expected to foster prospective teachers’ multilingual competence and inform their future teaching practice.