Pluperfect
n. 过去完成时\\na. 过去完成时的
📖 牛津释义
pluperfect
adj
(also past perfect) (grammar) (of the form of the verb phrase) expressing an action completed before a particular pointin the past （指动词词组形式）过去完成式的
a pluperfect(form of a) verb phrase 过去完成式动词词组. pluperfect, n (also past perfect) such a form (in English had and a past participle, as in `As he had not received my letter, he did not come') 过去完成式（在英语中had加过去分词, 如此处例句中的had加received）.
🗣️ 情景例句
Hey, that must be Pete!
嗨， 那一定是Pete
I will assist you in any way I can.
只要能做到的，我什么事情都愿为你做。
So I will receive and sign it overnight.
那么，我明天就可以收到并且签上名了。