We have studied English for 3 years.被动语态为什么是 English has been studied fou 3 years by us 而不是 English has been studied by us for 3 years?
问题描述：
We have studied English for 3 years.被动语态
为什么是 English has been studied fou 3 years by us 而不是 English has been studied by us for 3 years?
答
for 3 years作为谓语动词study的状语，跟study联在一起是一般的习惯，把它后置其实也不算错，只是作为习惯，前面那种译法更常见。
答
English has been studied by us for 3 years? 这样说完全可以。一般地说by短语放在谓语动词之后
English has been studied for 3 years by us 。此句反倒不符合英语习惯
答
其实都是可以的,都是对的哈
答
这两句话都是一样的，只是顺序不同。两个句子都是正确的~~~