过去完成时,was published翻译中文意思是已发布,过去完成时表示过去某一时间前就已经发生或完成了的动作,对过去的某一点造成的某种影响或是结果,用来指在另一个过去行动之前就已经完成了的事件。在英语时态中,“时“指动作发生的时间,”态“指动作的样子和状态。
过去完成时常用的时间状语有:
1. by the end of last+时间段. By the end of last term, we had learned 5000 new words.
到上学期末,我们已经学了5000个新词。
2. By the time sb. +动词过去式如: The bus had already left by the time I got there.
我到那儿时,公共汽车已经开走了。
3.By (the time of)+时间段
By the time of last year ,we had built two bridges.
到去年为止,我们已经建了两座桥。