1.
`Ihad finished' is an example of the past perfect.
“我过去已经完成了”是过去完成时态的一个例句。
2.
And will learn The simple past tense, The present perfect tense, The past perfect tense as well as The future tense.
这个学期，我们学到了过去时，现在完成时，过去完成时和将来时等。
3.
A verb or form in the pluperfect tense.
过去分词过去完成时态下的动词或形式
4.
They said that production costs had been reduced.
（过去完成时）他们说生产成本已经下降了。
5.
(linguistics) of or relating to the pat perfect tense of verbs.
（语言学）属于或关于动词的过去完成时态的。
6.
Mental Spaces and the Textual Function of Past Perfect;
心理空间和过去完成时的语篇连贯功能
7.
Space-construction Functions of Past Perfect Tense in Stream-of-consciousness Texts;
过去完成时在意识流语篇中的空间构建功能
8.
Of, relating to, or being a verb tense used to express action completed before a specified or implied past time.
过去完成时的属于、关于或成为一个被用来表示在一特定或暗示的过去时间之前完成动作的动词的
9.
the imperfect tenses in French
法语的过去未完成时态.
10.
a perfective tense used to express action completed in the past.
一种用来表达过去完成的动作的完成时态。
11.
A Semantic Study of the English Simple Past Tense and the Present Perfect;
一般过去时和现在完成体的语义研究
12.
(of verb tenses)composed of has/have or had+ past participle
（指动词时态）完成式的（由has/have 或had+过去分词组成）
13.
To grasp“ the Present Perfect” and the Irregular verbs’ past tense& past participle tense.
掌握现在完成时态以及不规则动词的过去时态和过去分词。
14.
A comparison on the means of the Past Perfective aspect usage between Russian and Chinese;
完成体过去时用法的俄汉语体手段对比分析
15.
a pluperfect verb phrase
过去完成式动词词组.
16.
The Effects of Chinese Perfective Aspect Marker Le on the Simple Past Use in English Interlanguage;
汉语完成体标记“了”对英语过渡语中使用一般过去时的影响
17.
Also marked Chinese“ le” express perfecting or change in aspect, sometimes does not express past tense.
也指出了汉语的“了”在体方面表示完成或变化，有时不表示过去时。
18.
That student never completes his work on time, I don't know how he gets by with it
那个学生从不按时完成作业，我不明白他是如何混过去的。