I am coming和I will be coming 是不是一样的?有什么不同

I am coming和I will be coming 是不是一样的?有什么不同 i will be coming back I am comeing!和I am coming有区别嘛 I will be coming here next 什么结构 I am coming through! I am coming to i am coming I am coming. Hold on,I _____in a moment.A.am coming B.will be back C.will i am coming to see you.i will come to see you.它们有什么区别呢? I am coming.是否等同I will come. 歌词：I am coming home,I will tell the world