英语翻译是这样的:也许,这仅仅是个梦现在梦醒了我知道,我要走了...我的未来终究还是不会有你或者...没有了你,我根本就

maybe,this's just a dream(主谓宾形式,一般现在时)
now I've been waken up from it(现在完成时,表动作的完成)
I know,I have to go(用have to比must好,意思是不得不,客观条件所迫)
U will not in my future 一般将来时
or ...I won't have a thing so called future without u.(so called future...作后置定语修饰a thing,without u是介词短语)