CORTÉS FERNÁNDEZ, Lidie Susana. Present Simple vs Present Progressive. Vida Científica Boletín Científico de la Escuela Preparatoria No. 4, [S. l.], v. 3, n. 5, 2015. Disponível em: https://repository.uaeh.edu.mx/revistas/index.php/prepa4/article/view/1958. Acesso em: 3 jul. 2025.