I would have had to have been watching the game.中的have to

问题描述:

I would have had to have been watching the game.中的have to
"Had to" is used here for what,obligation or probability?
是别人问的.我很奇怪have to还可以分为:obligation和probability表达,采纳答案是probability,但假若obligation理解成“必须,不得不,一定得”,那么probability是如何理解的?解释清楚即可,

这句话里,首先would have had这里用的是虚拟语气,就是对过去的假设,意思是本来可能……,就是过去本来应该或可能做什么,但实际上可能没有做,那既然是虚拟,他所说的这种情况只是有可能,并不是一定会发生,所以这样理解的话,没问题了吧.