Filter articles from one category to another

Anyone know if it’s possible to use filters (or some other method) to automatically move an article from one category to another?

My case is that I have a bunch of different categories for feeds in different languages. I have a feed in my English category that occasionally publishes articles in another language on the same feed. I’d like to move those articles to be with other articles of the same language in their own categories. These articles already have tags stating which language they’re written in, thankfully.

Cheers!

articles don’t belong to categories, feeds do. i suggest using tags instead.