Use a plagiarism checker tool
Upload or paste the paper into the checker
Review the similarity report
Check highlighted matching text
Compare matched sections with the original sources
Verify proper citations and quotations
Rewrite any uncited or overly similar passages
Check references and bibliography for accuracy
Run the paper through more than one checker if needed
Manually search key phrases in a search engine
Confirm that paraphrased content is sufficiently original
Ensure all borrowed ideas are credited properly