I have a friend who turned in such a good paper during grad school that the professor thought it was plagiarized (no turnitin or anything) and gave him a 0. After meeting with the teacher and straightening it out I would have felt pretty good about myself.
Just rewrite it a few more times
A couple months ago, my sister had to make a paper and then pass it through a plagiarism detector
The detector thought that some of the most common combinations of words and “:00”(as part of a time like 7:00) were plagiarized from their sources.
You could put any normal conversation in the detector and it would probably assume you were searching online what you should say next
Maybe you wrote so many papers AIs were trained on that they basically copy your style
This is precisely why those AI detector tools are all bullshit. All LLMs are trained on things that real people wrote.