Child his mother

这要看上下文才能明白.
下面有一个例子：
If the mother doesn't need her child,nor the child his mother,then this is not a mother,and this is not a child.
这里child his mother实际上是省略了动词need,整句话应该是nor the child needs his mother
因此,只有给出上下文才能解释清楚.
Child在正常英语里没有动词词性.

孩子他妈

把他的妈妈当孩子

是chide his mother
意思是责怪他的母亲