All scholars engage with and build on the work of other scholars. This is part of the practice of academia. Good academic practice involves being explicit about where we have got our ideas from, crediting those that have inspired us, and referencing accurately. Passing off other writers' arguments or expressions as your own, or failing to reference accurately is considered poor academic practice and can be penalised. Good academic practice is also about communicating clearly and reflecting on the effects of different language choices. There are some suggestions for further reading on this topic below.
Academic Phrasebank
Guide to academic writing produced by Manchester Universitty
Examples of paraphrasing without plagiarising
Produced by YourDictionary
iCite: Referencing at the University of Birmingham
Paraphrase: Write it in your own words
Produced by Purdue University
UW-Madison Writers Handbook
Produced by University of Wisconsin-Madison