Past simple tense has got one verb in the past form -- I went to the shop yesterday.
Past perfect is formed with had + past participle -- I had gone to the shop.
Past simple is used to talk about something that happened at a specific time in the past and is now finished.
Past perfect is used to talk about an event in the past that happened before another event in the past. This second event is usually in past simple.
Eg The train had left when I arrived at the station.
had left (past perfect) happened before arrived(past simple).
The past perfect tense of hope is had hoped.
"Had been" is the past perfect tense of be.
The past perfect tense is had broken.
The past perfect tense is had met.
The past perfect tense is had borne.
Existed is the past tense. The past perfect tense is had existed.
The past tense is bled, and the past perfect tense is had bled.
The past tense of sit is sat; the past perfect tense is had sat.
The past perfect tense of hope is had hoped.
The past perfect tense is had set.
The past perfect tense is had submitted.
The past perfect tense is "had confronted".
The past perfect tense is had rung.
The past perfect tense is had burned.
The past perfect tense is had chosen.
The past perfect tense of "learn" is "had learned."
The past perfect tense is had bathed.