Badaoui, NadirMansour, Mohamed2025-07-072025-07-072025-06-18http://dspace.univ-temouchent.edu.dz/handle/123456789/6427Our research aims to study the phenomenon code-switching between French and English among third-year university students at the University of Aïn Témouchent. Using a questionnaire answered by 46 students, we analyzed their linguistic behaviors on social media and examined the impact of such switching on learning French as a foreign language. Results reveal that code-switching is common and viewed as a sign of bilingual competence, though it may also cause linguistic interference. It thus represents both a resource and a challenge in FLE learning.frcode-switching, social media, bilingualism, French as a foreign language, university studentsalternance codique, réseaux sociaux, bilinguisme, français langue étrangère, étudiants universitairesالتناوب اللغوي، مواقع التواصل الإجتماعي، الثنائية اللغوية، الفرنسية كلغة أجنبية، طلاب الجامعةThesis