過去完成進行時（Pluperfect Continuous）主要用於描述在過去某一時間或動作發生之前正在進行的動作，強調過去的持續性或同時性。這種時態常常用來強調動作的開始時間和動作之間的時間先後關係。以下是一些例句：
We had been talking about you when you came in.（你進來的時候，我們正在說你。）
At last, he got the offer from the university he had been expecting.（最後，他終於收到了他期盼已久的大學錄取通知書。）
Our team had been practicing many times before we finished.（我們團隊在完成前練習了很多次。）
They had only been waiting for the bus a few minutes when it came.（他們只等了幾分鐘，車就來了。）
Up to that time, he had been translating those books.（直到那時，他一直在翻譯這些書。）
He had been thinking about his marriage.（他一直在思考他的婚姻問題。）
She had been suffering from a bad cold when she took the exam.（她在考試前一直患有重感冒。）
I had been looking for it for days before I found it.（那東西我找了好多天才找著的。）
I had only been reading a few minutes when he came in.（我剛看了幾分鐘，他就進來了。）
He had been mentioning your name to me.（他一直向我提起你的名字。）