Imagine you have a friend who often uses vulgarities and like they say has a bad mouth. You want to give them advice and ask them not to use vulgar language as a friend who wants the best for him/her. Also you dislike his/her mannerism, but for some reasons you can not put an end to this friendship (you want to maintain that relationship.) Once, when he/she is talking to you about a serious matter, he/she starts cussing and mixing their words with some of his personal catchwords which everyone would consider them indecent.
I need to know whether the sentence bellow sounds natural to you and if not, what is the natural way to say:
- Don’t be a foul-mouthed person.