Present Perfect - HAVE/HAS + V3 (третья форма глагола или past participle)
Past Perfect - HAD + V3 (третья форма глагола или past participle).
Past Perfect часто используют, когда одно событие произошло раньше другого в прошлом, e.g. I HAD done my homework BEFORE my mum came home - я СДЕЛАЛА дз ДО ТОГО, как мама пришла домой).
- Present Perfect (HAS gone out)
- Present Perfect (HAVE lived here for 12 years - прожил там 12 лет), Past Perfect (I HAD lived in a small cottage for 12 years BEFORE my fam moved to town - я ЖИЛ в маленьком коттедже 12 лет ДО ТОГО, как моя семья переехала в город, т.е. сначала он там жил (had lived), потом переехал - moved)
- Present Perfect (HAS played), Past Perfect (he had not played)
- Present Perfect (HAS seen)
- Present Perfect (HAVE wondered)
- Past Perfect (HAD worked)
- Past Perfect (HAD lost)
1.I phoned Mr. Williams to find out if Pat had gone away. He was not sure. Wait, I'll go and see if she has gone out.
2. Look at this house. I have lived here for 12 years and I am moving to another one next week. I had lived in a small cottage for 12 years before my family moved to town.
3. Jack has played tennis three times this week. He said he had not played tennis a week before.
4. Alan has seen a lot of Alexandra recently.
5. I have often wondered how he earns his living.
6. She told me she had worked in England before.
7. When I arrived at the country house, I realized I had lost the keys.