英语高手请进在句子中I hope (that) he comes tomorrow.that可以省略.同样在句子中I t

英语高手请进
在句子中I hope (that) he comes tomorrow.that可以省略.
同样在句子中I think (that) he is wrong about this.that可以省略.
think和hope都是可以接[+(that)]的从句,这样的例子还有很多.
而find句子中如I find that the boy crying in the corner.如果I find the boy crying in the corner.省略that就不对了,为什么呢?
修改:I find that the boy crying in the corner.如果I find the boy crying in the corner.省略that就不对了,为什么呢?