中文译英文-请高手帮忙

If I could, I will follow you for the rest of my life. Even your smile is not because of me.

If I can, I want to follow you for life, even if you smile for me and not from the start!

If it's possible, I would want to follow you for the rest of my life, even though your smile was never for me.

比较准确

If it's possible, I wanted to follow you my whole life, even though your smile were never for me.
这里是假设，要用虚拟状态
所以要用过去时和过去分词
smile 虽然是不可数名次也要用were

Hope This Helps!

Good Luck!