我后面还有用英语怎么说

在英语中，“我后面还有用”可以用以下几种方式表达：

I still have a use for it. 例句：I still have a use for this old laptop, so I'm going to keep it.

It's still useful to me. 例句：Even though this phone is old, it's still useful to me because it makes phone calls and sends texts.

It's still of value to me. 例句：I'm not ready to throw away this shirt yet because it's still of value to me.

这些表达方式均来自英语的日常用语。在英语中，“use”和“useful”都表示“有用”的意思，“value”表示“价值”，因此可以用这些词来表示“我后面还有用”的意思。