Can i call you Billy （转为否定句）

I can see Billy.(用not改成否定句) Silly Billy can touch his toes(改为否定句） 1. Please call me after school.(改为否定句） 2. You can be in our Can I call you? I can piay with you! (改为否定句） Can I Call You 歌词 You call it a joey .(改为否定句） _______________________________ Billy is very young.He can't read English.(合成一句） Billy is___ 英语转为同义句I can't leave my son at home by himself.(改为同义句）I can' You can swim.(改否定句） 怎样把I can see you改成否定句 I believe Jenny can help you改为否定句