i think everything is not like you think这句话是正确的么,如果是那么主句和从句分别是什么?

不对，这句话应该否定前移，应该为
i don’t think everything is like you think。

对了。everything is not like you think 是一个完整的句子做宾语从句
但是 哭0等谁回眸0 说的对，虽然句子结构很对，但是不符合西方人的思维观念，这里需要否定前移。请把分给他。
当主句的谓语动词是think,believe,imagine,suppose,consider,espect,fancy,guess等,并且主句的主语是第一人称而且为一般现在时,从句的否定词一般要转移到主句上来,其反义疑问句一般与宾语从句一致.
I don’t think he will come to my party.而不能说成I think he won’t come to my party.
我认为他不会来我的舞会.
I don’t believe that man is killed by Jim,is he?
我认为那个人不是Jim所杀的,是不是?
如果宾语从句中有某个含有否定意义的形容词或副词,其反义疑问句要用肯定形式.
We find that he never listens to the teacher carefully,does he?
我们发现他从来不仔细听老师讲课,是不是?

I think everything is not like WHAT you think. 少个what
主句：i think
从句：everything is not like what you think what you think作like的宾语

正确
I think是主句，everything is not like you think是从句。