i found it interesting 为什么不加is

i found it interesting 为什么不加is I found it hard to fall asleep at night.请问it后为什么不加is. 1.We found it very easy to do.这里面found 后面的it 为什么不加is ,不是it+i 比如:I found it interesting I find it interesting to learn English.为什么it后面不可加is. I find the film very interesting.为什么不加"is",就是I find the film 英语小诗 I found it interesting,( ) i found it interesting (raise)a rabbit 为什么常用i find it interesting 而不常用i find it's interesting 为什么常用i find it interesting 而不常用i find it's interesting? Tom found（）interesting to climb hills为什么不能用it’s? 终止性动词Entering the room, I found nobody in. 为什么found不加ing...