Hmm. This is interesting. I'll try to see how many times I use a curse word in a day.
In a typical conversation I don't swear. Swear words are just fillers, like "um", or "like" and I consciously try to avoid fillers. Using fillers detracts what you are trying to say.
When speaking French, I know that when I'm really angry, I'll say "ah, tabernacle." Or if I want to utter an aggressive "I don't care," I'll say, "J'm'en calice." I'm always in a good mood, am rarely extremely angry or aggressive, so it isn't common that I'll swear, but it happens.
In English, I know that I'll use Jesus F** Christ if I've had an accident or something really terrible has happened. I'll pay attention to see if I use other words. Sometimes, you get into habits without realizing it.
