Plagiarism, according to Dictionary.com, is:
An act or instance of using or closely imitating the language and thoughts of another author without authorization and the representation of that author's work as one's own, as by not crediting the original author.
(https://www.dictionary.com/browse/plagiarism)
Before proceeding, please acquaint yourself with the Code of Student Conduct at the link below, paying special attention to rule 9.
https://www.forsythtech.edu/catalog/2122/page/student-code-of-conduct
Now, read thoroughly all of the sections under Avoiding Plagiarism. Once at the site refer to the menu on the left of the screen:
https://owl.purdue.edu/owl/research_and_citation/using_research/avoiding_plagiarism/index.html
"Have you just heard of plagiarism? This video will tell you what is plagiarism, the consequences of plagiarism, and the 5 types of plagiarism you're most likely to encounter."
Though no plagiarism checker is 100% effective, this resource can flag some potential issues for you. It can help you check your grammar, too! You do not need to purchase a premium account to use this service.