规范用语不可以，但人说话总是规范么?

Um can you give an example? Sorry the way you phrase your question is confusing to me. Are you asking can you use the phrase “for example” or “such as” together with “and so on”?
I mean if you define “use them together with” as using them in a same sentence I don’t see why not because there are numerous ways to construct sentences so chances are these terms can be thrown together.
Lemme know if that’s not what you’re asking though. I have some difficulty understanding what people are asking on this server sometimes lol.

举例子不可以省略。应该是这样。