Jelaskan mengenai present perfect tense! ? Present perfect tense adalah pola kalimat yang digunakan untuk menyatakan aktivitas atau peristiwa yang terjadi pada masa lampau dan masih berpengaruh hingga sekarang. Rumus Verbal: (+) S + Have/Has + V3 + O I have finished my home work. (-) S + Have/Has + not + V3 + O I have not finished my home work. (?) have/has + S + V3 + O Have I finished my home work? Rumus Nominal: (+) S + have/has + to be 3 (been) + non verb + O Mr. Black has been here for 15 years. (-) S + have/has + not + to be 3 + non verb + O Mr. Black has not been here for 15 years. (?) have/has + S + to be 3 + non verb + O? Has Mr. Black been here for 15 years?
