您好，可以参考以下翻译：
If you aren't the one, I won't get marry at all this life.
如果不是你，我今生都不会结婚。
If it's not with you, I won't get marry for the whole life.
如果不是跟你，此生我都不会结婚。
In this life, I will only take you as my wife; if not, I won't get marry.
这辈子，我只会娶你为妻，若非如此，我不会结婚。
I won't take anyone but you as my wife for this life.
此生非你不娶。
英文娶嫁都是marry，但若一定要区别出来可以说 take you as my wife，那麼别人就知道你是娶的一方。当然现在国外也有许多是同性婚姻，此时若都是男方，其中一个向别人说 I will only take him as my other half，别人就会知道了。都是女方也是可以说She is my other half 或 She is my partner.