过去将来完成进行时的定义,和例句,讲解下

问题描述:

过去将来完成进行时的定义,和例句,讲解下

过去将来完成进行时:在过去某时之前看来将来某时应该已经完成并且还要延续下去的动作.{很少用} 例句:We thought they would have been doing physical training till then