看了前面一个关于 know 的用法的解答,受益匪浅!
虽然有点复杂,我会慢慢体会,真心感谢专家老师!
这里还有一个关于 know 的问题。像下面这样的句子,其中的 to 可以省略吗?
I know him to be honest.
I knew him to be honest.
I have known him to be honest.
I never him to be honest.
I have never known him to be honest.
know sb/sth to do结构通常用于被动结构。例如:
He is known to be a good doctor.
这种结构用来表示大多数人认为某种情况是真的。即上句中他是个好医生是大多数人的看法。因此不能用“我”作主语的主动结构中,这是对该句型的误用。
I know him to be a good doctor. (误)
但在否定结构中,not/never know sb (to) do sth, 这个结构表示主语的经历,翻译为: 从没有见过/经历过某人为某种情况。此时不定式带to或不带to均可。例如:
I’ve never known her (to) make a joke. 我从没见过她开玩笑。
因此,网友的如下句子:
I know him to be honest. (错。应改为被动句:He is known to be honest.)
I knew him to be honest. (同上)
I have known him to be honest. (同上)
I never knew him to be honest. (正确。to可以省略)
I have never known him to be honest. (正确。to可以省略)我从没见过他诚实的时候。
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