以前的用英语怎么说

以前的用英语可以说作 "previous" 或 "former"。这两个词都来源于拉丁语。"Previous" 来源于拉丁语的 "praevius"，意思是 "在前的"。"Former" 来源于拉丁语的 "formus"，意思是 "前的"。

一些例句如下：

She used to work at the same company as me, but now she works somewhere else. She was my previous colleague.
He used to be a teacher, but now he's a lawyer. He's a former teacher.
The previous owner of this house must have had a lot of money. It's really beautiful.
I saw the former president of the United States at the airport yesterday. He looked really different without all the Secret Service agents around him.