"你已经参加了英语" 用英文可以表达为 "You have participated in Engpsh."

这句话的来源是英语中常用的一种表达方式，用来描述某人已经参加了某项英语学习或使用的活动。

下面是一些相关的英文例句和中文翻译：

"I have participated in several Engpsh language classes over the years." (我多年来参加了几次英语课程。)
"She has participated in Engpsh conversation clubs to improve her speaking skills." (她参加了英语会话俱乐部来提高自己的口语技能。)
"They have participated in an Engpsh language exchange program to practice their skills with native speakers." (他们参加了英语语言交换项目，以便与母语人士练习自己的技能。)