I know where it is.(改为否定句）

I know where it is.(改为否定句） 1、I don't know where it is 和2、I don't know where is it.区别在哪里? I know where that is I don’t know where the key is,but I suppose I _______ it at home. where is the pencil?用I don't know 为啥不用I can't see it Do you know where it is ?是什么意思 Does jenny know where it is? I know.But where is him? I ( ) find my English book. Where is it? Do you know? But do you know where is the_?It's_ _the library._can I get there? I don't know where is it这句话对吗如果不对怎么改 I don't know where it is这句话语法对吗? I know it is over do you know where it is 为什么不是do you know where is it? I want to know what love is,where to find it and how can i get it…… I don't know where it is 和 I don't know where he can go 中 where 的用法是否相同?一共3个问题：1、I don't know where it is 这句话是否有语病?2、I don't know where he can go 这句话是否有语病?3、上面两句中 where 的 i know where is he 和 i know where he is 哪个正确 一首歌I know nobody know,where it come and where it goes.高手提醒下歌名