I can be the one和I could be the one有什么区别

I can be the one和I could be the one有什么区别
I can be the one和I could be the one有什么区别

I can be the one和I could be the one有什么区别
我能成为那一个（将来）
我本可以成为那一个（虚拟）

I can be the one我能成为那一个。
I could be the one我本可以是那一个。（现在不是）