Question

你若不离不弃，我必生死相依。英文怎么说？

Answer 1

I will always be with you until the end of time if you'd never leave me.
同义例句:
①If you do not leave, I ill in life and death.kpaar.info
②If you don't leave me, I will stay with you all my life
③If you never leave me, I will be with you till death do us apart

Answer 2

　　If you don‘t leave me, I’ll be by your side until the end.
　　有个故事：他追了她很久，有天她给他写下这句英文。他以为她说：“你要不离开我，我就和你同归于尽。”于是伤心欲绝，从此不联系。后来他才知道那是“你若不离不弃，我必生死相依！”

Answer 3

If you should
leave me or abandon me under no circumtance,
I would always be here
by your side forever,
alive or dead.

(说明：1.选用了虚拟语气; 2.英文中后半句用here来呼应前半句中的leave，扩充后半句，是为了使原句的诗意韵味能体现的充分一点。）

Answer 4

哦，这个你可以在官方网站上。啊，可以翻译成英文。

Answer 5

If you never abandon, I will in life and death.

你若不离不弃，我必生死相依