✔Earlier Action + Later Action → Past Perfect + Simple Past
✔Past Perfect is used for clarity when two past events occur together
✔ Signal words for Past Perfect: after, before, by the time, already, when, just—these words help indicate the earlier action in a sentence.
EXERCISE
We reached the station after the train (leave).
See AnswerThe patient (die) before the doctor reached.
See AnswerThe train (leave) before I reached the station.
See AnswerWhen I reached the station, the train (leave).
See AnswerThe meeting (begin) when we arrived at the auditorium.
See AnswerAs soon as I came in, she (leave) the room.
See AnswerAll the students (leave) when I reached the school.
See AnswerThey (reach) home before it grew dark.
See AnswerWe reached the station after the train (leave).
See AnswerHe (visit) many towns before he returned home.
See AnswerI reached the place after he (leave).
See AnswerWe reached the station after the train (leave).
See AnswerI (write) the letter before he arrived.
See AnswerHis father (die) before the doctor arrived.
See AnswerHe suddenly realized that he (leave) the purse in the bus.
See AnswerRam went out after he (lock) the door.
See Answer