It is used to refer to an event that had continuing relevance to a past time.
He thought he had found the answer to all his questions.
(Now he probably thinks differently though.)
Simple past perfect is 'I have tried'. Past perfect continuous is 'I have been trying'. Past perfect subjunctive is 'I had tried'
Past perfect is formed with - had + past participle.The past participle of shout is shoutedTherefore the past perfect verb is -- had shouted
The past perfect tense of memorize is "had memorized". The past perfect is created with had + a past participle.
You can't form past perfect tense with went. Went is the past of go.The past perfect is formed with -- had + past participle.The past participle of go is gone, past perfect = had gone
Had turned is the past perfect construction. Use had + past participle to create the past perfect tense.
past perfect is 'had kicked'
Present Perfect TenseSubject + Have/Has + Past Participle.Past Perfect TenseSubject + Had + Past Participle.Future Perfect TenseSubject + Will + Have + Past Participle.
Wrote is the simple past; had written is the past perfect.
The past perfect tense of hope is had hoped.
Wrote is the simple past; had written is the past perfect.
There is no past perfect tense of sat. Sat is the past tense and past participle of sit.There is a past perfect of sit.Past perfect is formed with had + past participle. The past participle of sit is sat. So the past perfect of sit is: -- had sat.eg We had sat in the car all day.
Past perfect is formed with -- had + past participle.The past participle of find is found.Past perfect is: had found