we will be back 能用we will back 后者的用法对吗?为什么要加个“be”呢?解释清楚一点可是back在作"后退,回来"解释时可以做动词啊,为什么还要加be呢?

WE WILL BE BACK We will be back! we will be back还是WE WILL BACK哪个对 I will be back,We will be back you will be back We will wait for you forever we will be back 能用we will back 后者的用法对吗?为什么要加个“be”呢?解释清楚一点可是back在作后退,回来解释时可以做动词啊,为什么还要加be呢? we will be coming back 中文歌词..五十分! We will be very happy to remember back on We are still on h().Next week we will be back to school. We will be 同上 WE WILL BE we will be better Will we be strangers? we will be close home,back,will,we(连词成句) 英语翻译----- ----- ----- ----- ----- ------ and we will go back we will wait until he____(回来)back. we will get back to you soon.