他一定是走这条路来的;这里还有他的脚印呢。
10 与neednt连用表示过去不必要的行为
You neednt have hurried. Now we are too early.
你本不必那么着急。现在我们到得太早了。
You neednt have cooked it. We could have eaten it raw.
你本来不必把它烧熟。我们本可以吃生的。
C 与某些别的动词连用
1 与appear,happen,pretend,seem连用
注意这里的不定式的一般式与完成式之间的差别:不定式的一般式:
He seems to be a great athlete.
他看来是一名优秀的运动员。相当于:
It seems that he is
我们的印象是他是
He seemed to be a great athlete.
那时他看起来像一名优秀的运动员。相当于:
It seemed that he was
那时我们的印象是他是一名
不定式的完成式:
He seems to have been
他看来曾经是相当于:
It seems that he was
我们的印象是他曾经是
He seemed to have been
那时看来他曾经是相当于:
【牛津实用英语语法:255 不定式的完成式】相关文章:
★ 牛津实用英语语法 83 what(关系代词)和which(连接关系词)
★ 牛津实用英语语法:143 ought/should与完成式连用
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2016-02-29
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