How to Paraphrase Without Plagiarizing

What paraphrasing is, and what it is not

Paraphrasing means taking one idea from a source and expressing it in your own words and sentence structure, at roughly the same level of detail as the original. It is not a quotation, which keeps the author's exact words, and it is not a summary, which shrinks a long passage to its main point. A paraphrase of a three-sentence passage might run two or three sentences. A summary of the same passage might be a single clause; the guide to writing an annotated bibliography shows how to summarize a whole source in a few sentences.

Instructors ask for paraphrase because it shows you understood the source. Anyone can copy a sentence, but restating it accurately in different words requires you to know what it means, how its parts relate, and which qualifications matter. Paraphrase also keeps your paper in one voice: an essay assembled from quotations sounds like a collage, while one built on paraphrase sounds like an argument you are making.

What paraphrasing does not do is make the idea yours. The citation stays, however thoroughly you rewrite. The guide to avoiding plagiarism explains where paraphrase fits alongside quoting and citing.

How to paraphrase in five steps

The method below works for a sentence, a paragraph or a dense page. Its core is step three, writing while the source is out of sight. Most weak paraphrases come from rewriting a sentence while looking at it, which pulls your version into the author's structure no matter how hard you try.

1. 1Read the passage and the text around it until you can say what it claims and why. Look up any term you cannot define.
2. 2Without looking, say the idea aloud or jot two or three keyword fragments, not full sentences, so you hold the meaning rather than the wording.
3. 3Put the source away and write your version from those fragments and memory, the way you would explain it to a classmate.
4. 4Compare your version with the original. Check that the meaning, including limits such as “some” or “may,” is intact and that no distinctive phrase or sentence pattern survived.
5. 5Add a signal phrase and a citation, then connect the paraphrase to your own point in the next sentence.

A paraphrasing example, from first try to final version

Here is a sample passage written for this guide. Suppose it appears on page 112 of a 2020 book by an author named Chen: “Most readers treat the footnotes in a history book as optional, but the notes are where a historian shows which claims rest on documents and which rest on inference.” Below are three attempts at paraphrasing it, from weakest to strongest.

The third attempt is the one to aim for, and it helps to see why before you read it. It opens with Chen's argument rather than the readers' habit, it replaces the documents-versus-inference pairing with an explanation of what that pairing lets a reader do, and it keeps the idea and the credit firmly with Chen. Nothing in it would look like a copied sentence to a reader holding the book. The first two show the most common ways to fall short:

• Synonym swap, which is plagiarism: “The majority of readers regard the footnotes in a history text as optional, yet the notes are where a historian reveals which assertions depend on records and which depend on deduction.” Every clause still sits where Chen put it.
• Restructured but with phrasing kept, which needs quotation marks: “Although often skipped, footnotes reveal which claims rest on documents and which rest on inference (Chen, 2020).” The final phrase is still Chen's wording.
• Genuine paraphrase: Chen (2020) argues that the notes in a history book deserve attention, because they let a reader judge how much of each argument comes from the archive and how much is the historian's own interpretation (p. 112).

Paraphrasing techniques that change the structure, not just the words

Before you rework a sentence, know what to leave alone. Technical terms such as “photosynthesis,” “opportunity cost” or “habeas corpus,” proper names and standard units have no accurate synonyms, and forcing one in makes your writing less precise. Keep them. What you must not keep is the author's distinctive phrasing: the memorable metaphor, the unusual adjective, the recognizable rhythm of a sentence.

Writing from memory does most of the work, but when a sentence still comes out sounding like the original, these moves help. Use several together, since any one alone tends to leave the author's skeleton visible:

• Start from a different element: if the original opens with the cause, open with the effect.
• Change grammatical forms, for example turning “the expansion of trade” into “trade expanded.”
• Switch between active and passive voice where it reads naturally.
• Split one long sentence into two, or merge two short ones.
• Replace an abstract phrase with the concrete thing it refers to.
• Frame the idea in terms of your own question, which shifts the emphasis toward your argument.

How to cite a paraphrase in APA, MLA and Chicago

Every paraphrase needs a citation, and the format depends on your style. In APA 7th edition, give the author and year, either in your sentence, as in Chen (2020) argues that the notes deserve attention, or in parentheses at the end, (Chen, 2020). APA does not require a page number for a paraphrase but encourages one when it would help a reader find the passage, as in (Chen, 2020, p. 112).

In MLA 9th edition, the parenthetical citation is the author and page with no comma, (Chen 112), or just the page if you named the author in your sentence. In Chicago notes and bibliography style, you place a note number at the end of the sentence and give the source and page in the footnote. In every style, the full source also goes in your reference list. The Chicago style citation guide covers note formats in detail.

Signal phrases credit the author and show where borrowed material begins. Choose the verb to match what the source actually does: argues, finds, suggests, describes, warns, disputes. That choice is a small act of interpretation, and it tells your reader how strongly the source makes its claim.

Paraphrasing mistakes that count as plagiarism

One shortcut deserves a warning first. Automatic rewording tools mostly perform the synonym swap described above, which leaves the original structure intact, and they can distort meaning without warning. Many courses treat their use as unauthorized assistance. Even where they are allowed, they skip the step that makes paraphrasing worthwhile: understanding an idea well enough to say it yourself.

Beyond tools, most problems come from a handful of habits. Check each paraphrase in your draft against this list before you submit:

• Synonym swapping: the original sentence structure with new vocabulary, as in the first attempt above.
• Keeping a distinctive phrase without quotation marks, even a short one.
• Changing the meaning, especially by dropping a qualifier, so that “may reduce” becomes “reduces.”
• Dropping the citation because the wording is now yours.
• Citing a work you only read about secondhand as if you had read it, instead of following your style's rule for secondary sources.
• Paraphrasing so much that the paper has no argument of its own, only a sequence of restated sources.

When to quote instead of paraphrasing

Paraphrase is the default, but not always the right choice. Quote when the wording itself is your evidence: a line of poetry or dialogue you are about to analyze, the exact terms of a law or treaty, a definition your argument depends on, or a phrase so well known that rewording it would be strange. Quote also when the author's word choice is your point, for instance when you argue that a historian's language reveals a bias.

If you keep failing to paraphrase a passage, notice what that tells you. It usually means you do not yet understand it, not that it cannot be paraphrased. Read the surrounding pages, try explaining it aloud, then try again. The SQ3R reading method gives you a step-by-step way through passages that refuse to make sense.