他们从来没有学过吸引别人注意的技巧。

They never learned skills to engage the attention of the others.

《柯林斯英汉双解大词典》

我从来没有学过滑旱冰。

I have never learned how to roller-skate.

youdao

我们的语言充满习语，如果没有学过，你不会明白它们是什么意思。

Our language is filled with idioms which may make no sense to you if you haven't learned them.

youdao

So this is going to be review still again, and for those of you for whom it isn't review don't worry.

那么就当作是复习了,那些之前没有学过的同学也不用担心

耶鲁公开课 - 博弈论课程节选

The Chinese program's pretty intense here. And I've never taken Chinese before.

这儿的汉语项目蛮激烈的。我之前也没有学过汉语。

汉语学习课程很难 - SpeakingMax英语口语达人

And if you haven't, if you've never seen it before, if you haven't taken, for example, the equivalent of Math 112, come and see us.

如果你以前没有接触过,或者说你们没学过类似数学112的课程,来找我求助吧

耶鲁公开课 - 博弈论课程节选