LEARNERS’ CONFUSIONS IN THE USAGE OFTHE PRESENT PERFECT TENSE. Pakistan Journal of Society, Education and Language (PJSEL), [S. l.], v. 6, n. 2, p. 263–278, 2020. Disponível em: https://www.pjsel.jehanf.com/index.php/journal/article/view/687. Acesso em: 26 oct. 2026.