"爱过" 用英语可以说成 "to have loved" 或 "to have been in love." 这两个短语都表示过去曾经拥有过爱情。这个说法来源于英语中动词 "to love" 的过去式 "loved," 后面加上助动词 "to have" 来表示过去曾经有过某种情况。

例句：

I have loved before, but never like this. (我以前爱过，但从没有像这样过。)

She has been in love with him for years, but he never noticed. (她爱他已经好多年了，但他一直没有注意到。)

He thought he had loved before, but then he met her and realized what true love really feels like. (他以为自己以前爱过，但后来他遇见她，才真正明白爱情是什么感觉。)