Formula untuk Present Perfect Tense adalah: Subject + (has/have) + verb3+ object + modifier Contoh: Farmers in Jati Bali have grown rice crops since 1970. (Petani-petani di Jati Bali telah menanam padi sejak tahun 1970). Some students have conducted research on vegetative plant propagations for two months. (Beberapa siswa telah melakukan penelitian pada perbanyakan tanaman... Read more