The past prefect tense of forget is forgotten.
Example:
I had forgotten my lunch box at home
The past perfect tense of hope is had hoped.
"Had been" is the past perfect tense of be.
The past perfect tense is had run.
The past perfect tense is had broken.
The past perfect tense is had borne.
There is no past participle tense. A past participle is a form of a verb that is used to make different tenses.The past participle form of forget is forgotten. Forgotten is used to make different tenses egpresent perfect -- have forgottenpast perfect -- had forgottenpassive -- be forgotten
Existed is the past tense. The past perfect tense is had existed.
The past perfect tense of hope is had hoped.
The past tense of "bleed" is "bled." The past perfect tense of "bleed" is "had bled."
The past tense of sit is sat; the past perfect tense is had sat.
present tense past tense future tense present perfect tense past perfect tense future perfect tense present progressive tense past progressive tense future progressive tense present perfect progressive tense past perfect progressive tense future perfect progressive tense
The past perfect tense of 'get' is 'had gotten'
Perfected is the past tense of perfect.
"Had been" is the past perfect tense of be.
The past perfect tense of do is had done.
The past perfect tense of borrow is "had borrowed."
The past perfect tense of "think" is "had thought."