pResENt peRfeCT aND SimpLE pAsT

subject + {has, have} + been + { verb + ing }.....

contoh present perfect :

Jorge has already walked to school. (tidak diketahui waktunya)

He has been to California three times. (lebih dari satu kali)

Mary has seen this movie before. (tidak diketahui waktunya)

They have been at home all day. (tidak selesai kalimatnya)

1. John wrote (write) his report last night.
2. Bob has seen (see) this movie before.
3. Jorge has read (read) the newspaper already.
4. Mr. Johnson has work (work) in the same place for thirty five years, and he is not planning to retire yet.
5. We haven't begin (begin/negative) to study for the test yet.
6. George went (go) to the store at ten o'clock this morning.
7. Joan has traveled (travel) around the world.
8. Betty wrote (write) a letter last night.
9. Guillermo called (call) his employer yesterday.
10. We haven't seen (see/negative) this movie yet.