Destroyed
The past simple of "destroy" is "destroyed." It is formed by adding the suffix "-ed" to the base verb. For example, "The fire destroyed the building."
The past participle is "destroyed".
Destroy is a regular verb so both past and past participle are destroyed
The past perfect tense of destroy is had destroyed.
The past tense form is destroyed.
The past simple of "have" is "had."
The simple past is had.
Past simple and simple past are both the same thing. They are both the past tense of a verb.
The simple past tense is climbed.
The simple past and past participle are both 'had'.
The simple past and past participle are both brought.
The simple past tense is studied.