jelaskan pengertian dari prasent perfect menggunakan bahasa inggris sebanyak 50 kalimat

Have we lived here for 4 years? Yes, we have / No, we have not studied biology for several minutes ago Have you studied biology for several minutes ago? Yes, I have / No, have not 3. I have cleaned my bedroom for several minutes Have you cleaned your bedroom for 4.several minutes? Yes, have / No, have not He has readied a book for four minute He has not readied a book for four minute Has he readied a book for four minute? Yes, he has / No, he has not