It's necessary to recognize the swear words in a language you are learning.    However, when I was teaching English, I always told my students not to try swearing in English until they headlined in an English speaking country for many years.  Getting swear words wrong is merely comical, and that is the last thing you want when you are trying to swear.  I advised them to swear in their own languages.  English speaker would know from the intonation that the student was swearing, and probably think that the student was saying something unimaginably strong.