i gave up what might have been a maginificent career as a painter 其中have been是啥意思?

问题描述:

i gave up what might have been a maginificent career as a painter 其中have been是啥意思?
我搞不懂have been有几种什么样的用法

用法:固定搭配 might have been
意思:有可能是