The document discusses the past perfect tense, which expresses an action that occurred before another past action. It provides examples of using the past perfect, such as "I had already eaten when my friend stopped by to visit" and "The Titanic had received many warnings before it hit the iceberg." It explains that the past perfect uses helping verbs like "had" plus the past participle of the main verb. It also notes that key words indicating the past perfect tense include "before" and "after."

2.  II had eatenhad eaten breakfastbreakfast
beforebefore
I went to school .I went to school .

3. How do we use the Past PerfectHow do we use the Past Perfect
TenseTense??
 The past perfectThe past perfect tense expressestense expresses
action in theaction in the pastpast before another actionbefore another action
in thein the pastpast. This is the. This is the past in thepast in the
pastpast..
EXAMPLE :EXAMPLE :
 The train left at 9am. We arrived atThe train left at 9am. We arrived at
9.15am. When we arrived, the train9.15am. When we arrived, the train hadhad
leftleft..

4. The Past PerfectThe Past Perfect
The Titanic had received many warnings before it
hit the iceberg.
I had already eaten when my friend stopped by to
visit.
had received
had eaten
it hit
my friend stopped by

5. Simple Past TenseSimple Past Tense
He came to my house.He came to my house.
Past PerfectPast Perfect
TenseTense
Chapter 11
I had already left.I had already left.
He came to my houseHe came to my house
afterafter
II hadhad alreadyalready leftleft..

6. Simple Past TenseSimple Past Tense
Past PerfectPast Perfect
Chapter 11
He came to my houseHe came to my house
afterafter I had already left.I had already left.
This action
This action
takes place
takes place
farther back in
farther back in
the past
the past..

7. Simple PastSimple Past
TenseTense
He came to my house.He came to my house.
Past PerfectPast Perfect
Chapter 11
I had already left.I had already left.
He came to my houseHe came to my house
afterafter I had already left.I had already left.

8. ad Ali done beforead Ali done before
he went fishinghe went fishing??
before he wentbefore he went
fishingfishing..
Ali had repaired
his car

9. The key wordsThe key words
of this tenseof this tense
areare::after
as soon as , Past simple
{had+PP}

10. The key wordsThe key words
of this tenseof this tense
areare::before
By the time
{past simple}+ Had+PP

11. The structure of the pastThe structure of the past
perfect tense isperfect tense is::
subjectsubject auxiliaryauxiliary
verbverb
main verbmain verb
++ II hadhad finishedfinished my workmy work..
++ YouYou hadhad stoppedstopped beforebefore
meme..
-- SheShe hadhad notnot gonegone to schoolto school..
-- WeWe hadhad notnot leftleft..
?? HadHad youyou arrivedarrived??
?? HadHad theythey eateneaten dinnerdinner??