Slide 85
Sam gained weight because
He had been overeating.
Betty failed the final test because she had not been attending class.
Slide 86
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. Study the next slide below to understand the difference.
Slide 87
Past Continuous vs. Past Perfect Continuous
Past Continuous
.
This sentence emphasizes that he was tired because he was exercising at that exact moment.
Past Perfect Continuous
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.
He was tired because he was exercising so hard
He was tired because he had been exercising so hard.
Slide 88
The examples below show the placement for grammar adverbs such as: always, only, never, ever, still, just, etc.
Examples:
You had only been waiting there for a few minutes when she arrived.
Had you only been waiting there for a few minutes when she arrived?
Slide 89
NOTE: Passive forms of the Past Perfect Continuous are not common.
active
Chef Jones had been preparing the restaurant's fantastic dinners for two years before he moved to Paris.
passive
The restaurant's fantastic dinners had been being prepared by Chef Jones for two years before he moved to Paris.
Slide 90
PAST PERFECT CONTINUOUS 1.They (shout) for a few hours before their parents arrived. 2.They (eat) noisily for a few hours before their parents arrived. 3. They (play) music at full volume for a few hours before their parents arrived.
4. They (jump )on their parents' bed for a few hours before their parents arrived. 5. They (try) on Mary's clothes for a few hours before their parents arrived.
Slide 91
PAST PERFECT CONTINUOUS 1.They had been shouting(shout) for a few hours before their parents arrived. 2.They (eat) noisily for a few hours before their parents arrived. 3. They (play) music at full volume for a few hours before their parents arrived.