1, I didn't go there two years ago.
2, I didn't go there two years before.
3, I didn't go there before.
4, I haven't been there before.
5, I haven't been there two years before.
6, I hadn't been there two years before.
老师 这些句子中哪些是错误的?为什么?
1, I didn't go there two years ago.
2, I didn't go there two years before.
句子1显然是对的,
句子2也对,但这句用于回答人家提问才好,
如果是你,比如与人第一次,说出的单独的句子,人家会等你继续往下说。
看到上图没?你的句子缺了一部分,因而不完整。
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然后就是在过去完成时里,也未必就是要用before,
换句话说,也不能说ago就一定不能与过去完成时连用:
"I met you two years ago".
转变成间接引语:
He said that he had met me two years before.
这个公式套下来,很好,很利索,但语义未必正确。
假设你于2017年遇到某人, 2019年又来到该地并再次看到了他,现在是2020年, 那么:
He told me we had met three years ago. (三年前见到,从现在起算)
He told me we had met two years before. (三年前见到,从2019起算)
第二句把2改成3,含义立马模糊。
而且,听话人未必自动就把before看成是副词,从而会问before what?
你所有的句子,都有可能是对的,也都有可能是错的,就看你要表达什么
而句子语义的变化,大概上面都讲到了。