SER Y ESTAR EN LA ENSEÑANZA Y EL APRENDIZAJE DEL ELE Verb (to be) in Learning and Teaching Spanish as a Foreign Language. JCL [Internet]. 2017 Jan. 1 [cited 2025 May 2];(35):238-6. Available from: https://www.jcolang.uobaghdad.edu.iq/index.php/JCL/article/view/70