you are to leave the bag here的被动句怎么写

题目

you are to leave the bag here的被动句怎么写
the bag is be to leave here by be to 表什么时态?

答案

我觉得你的问题有问题
如果是改成被动句的话
应该是
the bag should be left/ is to be left here
有没有by you 都行