your job is cleaning the room

your job is clean the room
is 是动词 clean是动词，一个句子不可能有两个动词，所以 是错的。

your job is cleaning the room是对的 ，但是不好，最好是 your job is to clean the room

your job is cleaning the room这个是对的

有错误 应该是 Your job is to clean the room.
不能按照中文的写法。。。语法不对