she must have been a temporary worker 是什么时态?

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/06/25 22:57:09

she must have been a temporary worker 是什么时态?
there has been a tendency to romanticize the accomplishments 是什么时态?
是there be 为什么中间有个has?

情态动词加完成式通常是对过去的情感态度,这里表示猜测.
there be的句型根据需要,什么时态都可以用.这里是完成时.there have/has been,只有完成时的时候,才能用have/has,但后面一点要加been.
多谢你的问题!

she must have been a temporary worker 是什么时态? have been是什么时态? have+been是什么时态 she must have arrived there yesterday .这是什么时态 She must have been a beauty in her day. i think he must have been a mechanic,中的must和have been是什么词啊? have been working 是什么时态 have been doing是什么时态? have been to是什么时态? she must have been forty.变反意疑问句! have/has+been to是什么时态 have/has/had加been是什么时态