Already is not a verb, so it does not have a past perfect tense.
Past perfect: had already occurred. Present perfect: have/has already occurred. Future perfect: will have already occurred.
The present perfect tense is typically used with "already." For example, "I have already completed my homework."
The word 'broke' is already the past tense of the word 'break'.The present perfect tense is 'have broken'.
Past Perfect Simple - "It had already grown by July."Past Perfect Continuous - "It had been growing for two months, when it got its first flower."
The verb "had performed" is in the past perfect tense.
Past perfect is formed with -- had + past participle.The past participle of find is found.Past perfect is: had found
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 tense of "have planned" is present perfect. It indicates an action that was completed in the past and has relevance to the present moment.
The past perfect tense of hope is had hoped.
The past perfect tense is had set.