Most cussing is censored and bleeped out
"Suck," "god," "crap," "piss," "hell," "damn," "ass," "bitch," "bastard," "dick," "a-hole" abbreviations, on-screen use of the middle finger, and inadvertent uses of "shit" in the honest trailers for Ghostbusters, The Acolyte, and the 2022 Oscars (as well as one legible use of it in the one for The Wizard of Oz), "fuck" in the one for The Dark Knight, and "cock" in the now-outdated "Every Streaming Service" HT respectively. All expletives stronger than the non-inadvertent ones listed are bleeped, although sometimes the same can also be said for words from "ass," to "dick."
In The Dark Knight Trailer, the word 'fuck' is used twice.
In the Transformers: Age Of Extinction trailer, the word 'shit' is said in Chinese once, although it's still censored in the translated subtitles.
Frequent uses of 'shit,' 'ass' and 'bitch.'