... dài, đang ở giữa công việc, trong một thời gian nào đó. Không cho biết khi nào chấm dứt. EX: This time last year I was living in Spain. What were you doing at 10 o'clock last night ? ... bedroom. NOTE : Cụm và từ ngữ chỉ thời gian: While, at that very moment, at 10:00 last night, and this morning etc. 3- THÌ QUÁ KHỨ HOÀN THÀNH ( PAST PERFECT) Thì quá khứ hoàn thành diễn tả ... KHỨ PHÂN TỪ (PP) Ex: I had just finished watering the lawn when it began to rain She had studied English before she came to the U.S After he had eaten breakfast, he went to school. ...