Ihavesomethingtoeat.toeat在宾语后面为什么不是宾补我们老师说是后置定语

Question

I have something to eat.to eat 在宾语后面为什么不是宾补 我们老师说是后置定语

Answer 1

首先说,宾语和宾补关系非常紧密,合起来做复合宾语,去掉宾补的话句子不完整,如：
I ask him to come over. 去掉to come over的话,句子不完整.
而I have something已经很完整了,所以to eat只是修饰部分.

其次,不定式作宾补时,宾语是其动作的发起者,即宾语和宾补构成主谓(或主系表）关系,即
I ask him to come over. (he comes over)
My boss told me to type out two letters. (I type out two letters)
而something是不能做出eat的动作的,这是不定式作后置定语,翻译成”吃的东西“.