Tenses Questions
The past perfect tense is used to describe an action that was completed before another action or point in the past. It is formed by using the auxiliary verb "had" followed by the past participle of the main verb. For example, "She had already finished her homework before her friends arrived."
On the other hand, the future perfect tense is used to describe an action that will be completed before a specific point or action in the future. It is formed by using the auxiliary verb "will have" followed by the past participle of the main verb. For example, "By the time he arrives, I will have finished cooking dinner."
In summary, the main difference between the past perfect and future perfect tenses is that the past perfect refers to completed actions before a past point, while the future perfect refers to completed actions before a future point.