TY - VIDEO AU - Manzur Henao, Tarek A4 - Averanga, Alfredo Jose A4 - Corredor Plazas, Nelson Javier A4 - Parra Pérez, Diana Angélica A4 - Osorio Sánchez, Marcela A4 - Fernández Camargo, Sandra Milena PY - 2018 UR - http://hdl.handle.net/10818/33374 AB - By the end of this lesson the student will be able to review the use of present perfect tense in negative form and some adverbs. LA - eng PB - Universidad de La Sabana KW - Present perfect negative KW - Grammar KW - Time expressions TI - Present perfect part II ER -