martes, octubre 16, 2012

Past Perfect Continuous

[had been + present participle]
·       You had been waiting there for more than two hours when she finally arrived.
·       Had you been waiting there for more than two hours when she finally arrived?
·       You had not been waiting there for more than two hours when she finally arrived.

USE 1 Duration Before Something in the Past


We use the Past Perfect Continuous to show that something started in the past and continued up until another time in the past. "For five minutes" and "for two weeks" are both durations which can be used with the Past Perfect Continuous. Notice that this is related to the Present Perfect Continuous; however, the duration does not continue until now, it stops before something else in the past.
·       They had been talking for over an hour before Tony arrived.
·       She had been working at that company for three years when it went out of business.
·       How long had you been waiting to get on the bus?
·       Mike wanted to sit down because he had been standing all day at work.
·       James had been teaching at the university for more than a year before he left for Asia.
·       A: How long had you been studying Turkish before you moved to Ankara?
B: I hadnotbeenstudying Turkishverylong.

USE 2 Cause of Something in the Past


Using the Past Perfect Continuous before another action in the past is a good way to show cause and effect.
·       Jason was tired because he had been jogging.
·       Sam gained weight because he had been overeating.
·       Betty failed the final test because she had not been attending class.

Past Continuous vs. Past Perfect Continuous
If you do not include a duration such as "for five minutes," "for two weeks" or "since Friday," many English speakers choose to use the Past Continuous rather than the Past Perfect Continuous. Be careful because this can change the meaning of the sentence. Past Continuous emphasizes interrupted actions, whereas Past Perfect Continuous emphasizes a duration of time before something in the past. Studytheexamplesbelowtounderstandthedifference.
·       He was tired because he was exercising so hard.
This sentence emphasizes that he was tired because he was exercising at that exact moment.
·       He was tired because he had been exercising so hard.
This sentence emphasizes that he was tired because he had been exercising over a period of time. It is possible that he was still exercising at that moment OR that he had just finished.


Using the words in parentheses, complete the text below with the appropriate tenses
Principio del formulario
I'm sorry I left without you last night, but I told you to meet me early because the show started at 8:00. I (try) to get tickets for that play for months, and I didn't want to miss it. By the time I finally left the coffee shop where we were supposed to meet, I (have) five cups of coffee and I (wait) over an hour. I had to leave because I (arrange) to meet Kathy in front of the theater.

When I arrived at the theater, Kathy (pick, already)
up the tickets and she was waiting for us near the entrance. She was really angry because she (wait) for more than half an hour. She said she (give, almost) up and (go) into the theater without us.

Kathy told me you (be)
late several times in the past and that she would not make plans with you again in the future. She mentioned that she (miss) several movies because of your late arrivals. I think you owe her an apology. And in the future, I suggest you be on time! 

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