he never expected the bicycle to be found

来源：百度知道编辑：UC知道时间：2024/05/29 03:29:14

该被动语态为什么是 to be found而不是was found,谢谢
下面句子也是这样？（为什么）
I want the clothes to be washed.---也是用的to be washed，这里能不能用is washed？？

首先这是一个被动语态没错，但是后面的to do 是前面的want和expected所带的动词不定式形式…这两句都是动词不定式的被动语态，所以形式是to be done 而不是你说的那个

to do sth 是将要做什么的意思，上面那个是过去将来时，也可以理解为expected sth/sb to be done的固定搭配，want to 也是固定搭配。而was found 和is washed在这里是不可以的，时态意思表达不对，而且搭配也不可以。

其实都一样的，意思都一样，文法也没有错误。
但是第二个，不能用 is washed。is washed
要用的话你就要把 is 去掉。

expect/want something to be done或expect/want something to do是固定短语.比如:I want you to go there tomorrow.也可以理解为:to be done表示将来时态,还没有实现,正如前边所expect/want.总之是一种语法习惯,有了这种语感,你就理解了~

he never does what he is told HOW CAN YOU EXPECT TO LEARN ANYTHING-------YOU NEVER LISTEN？ what you expect to pass has never really gone still he never seems tired. He has never finished writing the novel. He never dreams____a doctor in the future. He is never late for school,_________? He like He never eats anything(他从不吃东西) He is quite _ math,but he never drops it. He is quite _ math,but he never drops it