如果您要表示自己已经离开某个地方或状态很久了,可以使用短语"have been away from"。例如:

"I have been away from Engpsh for a long time."(我已经离开英语很久了。)
"I have been away from home for over a year."(我已经离家一年多了。)

"Have been away from"是一个短语,其中"have been"是助动词(auxipary verb)"have"和动词"be"的过去分词形式,构成了一种过去完成时(past perfect tense)。它用来描述过去的一个动作或状态已经结束,且在过去的某个特定时间之前就已经发生了。在这里,"have been away from"表示在过去的某个时间之前,您就已经离开了英语或其他地方或状态。

例如:

"I haven't seen him since I have been away from school."(我自从离开学校就没见过他了。)
"She has been away from work for three months because of her illness."(由于生病,她已经离开工作三个月了。)

希望以上内容能够帮到您。