I don’t know any french at all.这句话里有必要加any这个单词么?为什么?

I don’t know any french at all.这句话里有必要加any这个单词么?为什么? I don't know any of them i don't have any friends为什么要加s I don't know when the guest( ) be here.they( )arrive at any I don't even know who I am any more I hope you know,I don't need any lie I don't know any of them. 我在书上看是说 any of 是表语.但是为什么说是表语. I don't know how to smile any more Should I can't smile any I speak a little French.(改为否定句) I can't speak any French.为什么 I don't know you any more 吉他谱 I don't know you any more歌词 i don' t know you any more的中文歌词