The verb phrase in past perfect is formed with - had + past participle.
The past perfect verb phrase for study is had studied. A sentence like -- I had studied cooking -- tells you that sometime in the past I studied cooking but this sentence does not have much meaning by itself.
Past perfect is often used with past simple to show that one thing happened in the past before another thing in the past. eg
I had studied cooking -- past perfect
We opened the cafe -- past simple
I had studied cooking before we opened the cafe
Past perfect can also be used in the 'if clause' of a conditional statement eg
If you had studied your notes you wouldn't be in a panic now
The past perfect tense is 'I had written'.The present perfect tense is 'I/you/we/they have written. He/she/it has written.
The past perfect tense of enter is had entered.
"Had written" is the past perfect tense of "write".
Wrote is the simple past; had written is the past perfect.
The present perfect tense is:I/You/We/They have written.He/She/It has written.The past perfect tense is:Had written.The future perfect tense is:Will have written.
The past simple tense is meant.(pronounced ment)The present perfect tense is have/hasmeant, and the past perfect tense is had meant.The past progressive tense is was meaning / were meaning.The past perfect progressive is had been meaning.
Studied is the past tense of study.
The past perfect tense of "study" is "had studied."
The past tense of "exist" is "existed." 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 of sit 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." For example, "She had done her homework before dinner."