虚拟语气过去完成时，是英语中用来表示虚拟或与现实相反的情况，通常用于条件句或表达建议、愿望、怀疑等语句中。下面是一些常见的虚拟语气过去完成时的例句。
-
If I had studied harder, I would have passed the exam. （如果我学习得更努力，我就能通过考试了。）
-
If you had told me earlier, I would have helped you. （如果你早点告诉我，我就会帮助你的。）
-
If he had arrived on time, we would have caught the train. （如果他按时到达，我们就能赶上那趟火车了。）
-
If I had known you were coming, I would have prepared dinner. （如果我知道你要来，我就会准备晚餐了。）
-
If she had studied abroad, she would have learned a new language. （如果她出国留学，她就会学到一门新语言。）
-
I wish I had gone to the party last night. （我希望昨晚我去了派对。）
-
I wish I had known about the sale earlier. （我希望我早点知道这次的折扣活动。）
-
He doubted if he had made the right decision. （他怀疑自己是否做出了正确的决定。）
以上是一些常见的虚拟语气过去完成时的例句。希望这些例句能够帮助你更好地理解和掌握虚拟语气过去完成时的用法。
