分类：教育/科学-外语学习-英语考试
问题：问大家一个英语时态和被动句的问题下面几个句子：PastTheya 
下面几个句子：PastThey ate chicn.They was eating chicken.They had eaten chicken.They had been eaten chicken.Chicken was eaten by them.Chicken was being eaten by them.Chicken had been eaten by them.None PresentThey eat chicken. They are eating chicken.下面几个句子：PastThey ate chicn.They was eating chicken.They had eaten chicken.They had been eaten chicken.Chicken was eaten by them.Chicken was being eaten by them.Chicken had been eaten by them.None PresentThey eat chicken. They are eating chicken.They  have eaten chicken.They have been eating chicken.Chicken is eaten by them.Chicken is being eaten by them.Chicken has been eaten by them.NoneFutureThey will eat chicken.They will eating chicken.They will have eating chicken.They will have been eaten chicken.Chicken will be eaten by them.Chicken will being eaten by them.Chicken will has been eaten by them.None 三个时态和对应的被动句，好像有几个不存在，告诉我，再给我解释一下为什末。还有，will be doing 和 be going to be doing 可用在哪里
回答：1、首先下列三个句子都是错误的。
They had been eaten chicken.
They have been eating chicken.
They will have been eaten chicken.

上述三个句子都是被动句，及物动词eat在上述三个句子中都带有自己的宾语chicken，不能将它们连用而采用被动句，或者说无法表示被动意义。但下述三个句子都正确：
They had been eaten by chicken.
They have been eating by chicken.
They will have been eaten by chicken.

但此时施动者是chicken，而不是they；上述三句中的they可能是诸如“米粒”之类的东西，而不是你所写句子中的they（可能指人等）。

will be doing 和 be going to be doing 一般可以用于将来进行时。

好好体会一下，就会明白。