PAST PERFECT VERSUS PAST SIMPLE

1. PAST PERFECT
VERSUS
PAST SIMPLE

2. PAST PERFECT
USE 1 Completed Action Before Something in the Past
The Past Perfect expresses the idea that something occurred
before another action in the past. It can also show that something
happened before a specific time in the past.
I had never seen such a beautiful beach before I went to Kauai.
I did not have any money because I had lost my wallet.
Tony knew Istanbul so well because he had visited the city several
times.
USE 2 Duration Before Something in the Past
we use the Past Perfect to show that something started in the
past and continued up until another action in the past.
We had had that car for ten years before it broke down.
By the time Alex finished his studies, he had been in London for over
eight years.
They felt bad about selling the house because they had owned it for
more than forty years.

3. We form the past perfect tense with the past
of the verb “To have” and the past participle
of the main verb.
In negative and question sentences, we
add “not” to the verb to have.
We hadn’t gone to the gym when we saw you.
Julia hadn’t swum in her swimming-pool.
Question and short answer:
Had you gone? Yes, I had
Had she worked? No, she hadn’t

4. PAST PERFECT VERSUS PAST SIMPLE
The time expressions already, for, since, and yet may be used in the
past perfect simple, as they are in the present perfect simple.
Use after, as soon as, the moment that, until before using the past
perfect simple.
After she had moved out, I found her notes.
I didn’t say anything until she had finished talking.
Use before, when, by the time before the past simple.
Before I knew it, she had run out the door.
By the time he phoned her, she had found someone new.
After Sofie had finished her work, she went to lunch.
(First she finished her work and then she went to eat lunch.)
I washed the floor when the painter had gone.
(First the painter left and then I washed the floor.)
Harold had known about it for a while.
(First he knew about it, then others knew about it)

5. VIDEOS
https://www.youtube.com/watch?v=iIL8LDt1g
ZU&hd=1
https://www.youtube.com/watch?v=CQzfiydx
97o&hd=1#
https://www.youtube.com/watch?v=qQWEt3L
o358&hd=1#