Ask HN: Can you discuss CS in your native language?

Yesterday I needed to message my CS teacher about an exam question, and discovered that I was unable to formulate my question in Swedish, so I opted to write the whole message in English instead. I don't want to share the message, since it is related to an exam, but it was about Iacono's working set structure.

Have your native languages incorporated CS terms to any usable level, or do you have to switch to English, in part or wholly, when the topic is discussed?