It can happen, particularly when you are in a hurry. Unintentional plagiarism still must be avoided. Below are techniques, tools, and suggestions on how to take notes, prepare your drafts, and check your final papers to avoid and detect unintentional plagiarism.
If you are using an AI (generative Artificial Intelligence) tool to help you write, make sure you are still editing the output to make it your own, and that you can show (through citations) the original information sources you are using to make your arguments.