在英语中，由于组成复杂，将来完成进行时是一种得到关注较少的时态，实际用起来时常被将来完成时或者将来进行时取代，将来完成进行时的被动时态就更加少见了，但还是希望大家能掌握它们的组成和用法。

在选择谓语动词的时态的时候，有许多情况要注意考虑，比如说人称和主语单复数，接下来，我们一起来看看吧。

第一人称：will have been 动词的现在分词

如：By the time the sun sets, we will have been working for six hours.

第二人称：will have been 动词的现在分词

如：By the time the sun sets, you will have been working for six hours.

第三人称：will have been 动词的现在分词

如：By the time the sun sets, they will have been working for six hours.

复数人称：will have been 动词的现在分词

将来完成进行时【被动语态】的构成

第一人称：will/shall/am going to have been being 动词的过去分词

如：By the end of this year I’ll have been employed for thirty years. 

第二人称：will/are going to have been being 动词的过去分词

如：By the end of this year you shall have been employed for thirty years. 

第三人称：will/is going to have been being 动词的过去分词

如：By the end of this year, he is going to have been employed for thirty years. 

复数人称：will/are going to have been being 动词的过去分词

如：By the end of this year, they are going to have been employed for thirty years.