Are you still plagarizing if you take someone else's work but change it around?

Answer 1

Yes. Plagiarism is stealing. Changing around someone else's work does not make it your own original work. If you take someone's house, paint it a different color, and rearrange the furniture, it is still his house.

You can use someone else's idea to inspire you to write your own original work. Writers do that all the time. There are thousands of stories based on the idea of star-crossed lovers.

You can use quotes from someone else's work if you have permission from the original author and if you acknowledge the source of the quote.

A writer's words are copyrighted. Ideas are not.

IP is still the original copyright the case from George Harrison (my sweet lord music sound) was very similar to your question the riff of the music was similar therefor he lost his case because it wasnt his original idea but a version of from a popular song riff of another artist.