Honestly, I'm not sure whether or not someone swears has much to do with personality type. I'm not ruling it out entirely, but I don't think it's a big contributing factor at all. I think there are lots of other factors at play there.
And no, I don't swear. 99.9% of the time, anyway. If I swear, and it is extremely rare, it means that I have for a second reached the very end of my patience, and I am pretty patient for the most part. Then of course I almost instantly recover and apologize for swearing, since I don't like swearing. But you could know me for a really long time and not hear me swear.