i'll be right there,为什么要用be呢,那如果换成我们复数,这个be还需要或者可以用吗

I'll be right l ll be right there i ll be there I’ll be right back Please be brave.I\'ll be right 求I' ll always be right there的中文歌词 I'll be right with you.分析一下这个句子 i’ll be there mp3 I'll be back home.中will和be都是be动词吗?为什么会有两个be动词呢? i'll be right back怎么读 I'll be right with you . may there be a be或者there may be a be这种语法可以吗