一直爱你可以用英语表达为 "I've always loved you" 或 "I have always loved you."

这两个表达方式都表示 "I have always loved you"，意思是 "我一直爱你"。它们的来源可能是英文中的现在完成时，表示动作发生在过去，并一直持续到现在。

例句：

I've always loved you, and I always will. 我一直爱你，并且永远都会。

I have always loved you, but I couldn't tell you before. 我一直爱你，但我之前不能告诉你。