this may have been close to the truth这个have been后面为什么加close原型啊?什么情况?

问题描述:

this may have been close to the truth这个have been后面为什么加close原型啊?什么情况?
at that time,this may have been close to the truth,

close有两种含义,一种是“关闭”,是动词;另一种是“接近的”,是形容词.
这里的close是做形容词“接近的”的,所以可以不变形直接加载have been后面.