英文上有冇for simple example

你所問的可以用以下的表達方法：
As a simple example, ...
Here is a simple example: ...
Let me use a simple example.

There is no "for simple example "
It is Chinglish!!! (chinese english)

Simply, "for example" is okay

唔可以 for simple example.
For example 或 A simple example is (that) ....