全部

1·'I have eaten' is the present perfect tense of the verb 'to eat', 'I had eaten' is the past perfect and 'I will have eaten' is the future perfect.

I have eaten是动词eat的现在完成时；I had eaten是过去完成时；I will have eaten是将来完成时。《牛津词典》

2·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。

3·Learn to express something with Past Perfect Tense.

学习使用过去完成时态。

4·Most of the grammar is just past simple and past perfect.

大部分的语法都是一般过去时和现在完成时。

5·Most of the grammar is just past simple and past perfect.

大部分的语法都只是一般过去时和过去完成时。

6·Most of the grammar is just past simple and past perfect.

大部分的语法都是普经过去时和如今完成时。

7·They are used as auxiliaries to the present and past perfect tenses.

它们是用作现在完成时和过去完成时的助动词。

8·The present and past perfect tenses both belong to the perfect tense.

现在完成时和过去完成时都属于完成时态。

9·B. Fill in the blanks with the past perfect or simple past tense of the verbs in brackets.

试用括号里动词的过去完成时态或一般过去时态来填充空格。

10·Lin Yutang 's personality shaped the past perfect modality of China' s cultural transformation on individual level.

林语堂的人格是中国文化转型在个体层面的完成时形态。