๐Ÿ“english grammar and usage review

Non-defining relative clause

Written by the Fiveable Content Team โ€ข Last updated September 2025
Written by the Fiveable Content Team โ€ข Last updated September 2025

Definition

A non-defining relative clause adds extra information about a noun without limiting or defining it, and is typically set off by commas. This type of clause provides additional context or details that are not essential to the meaning of the main sentence, allowing the sentence to remain clear even if the clause is removed. Non-defining relative clauses often use relative pronouns like 'who,' 'which,' or 'that' to introduce the added information.

5 Must Know Facts For Your Next Test

  1. Non-defining relative clauses are always set off by commas, indicating that the information they contain is additional rather than crucial.
  2. These clauses can provide extra details about people, places, or things, enhancing the reader's understanding without changing the core meaning of the sentence.
  3. Unlike defining relative clauses, non-defining relative clauses cannot use 'that' as a relative pronoun; instead, they use 'who' or 'which.'
  4. Removing a non-defining relative clause from a sentence does not alter its overall meaning, highlighting its role as supplementary information.
  5. Non-defining relative clauses are commonly used in written English, particularly in formal contexts, to elaborate on subjects and add sophistication to sentences.

Review Questions

  • How do non-defining relative clauses differ from defining relative clauses in terms of their function and punctuation?
    • Non-defining relative clauses differ from defining relative clauses primarily in their function and punctuation. While defining relative clauses provide essential information necessary for identifying a noun, non-defining relative clauses add extra information that is not crucial for understanding the sentence. Non-defining clauses are always set off by commas, indicating that the sentence would still make sense if the clause were removed, whereas defining clauses do not use commas.
  • Discuss the importance of using correct punctuation when incorporating non-defining relative clauses into sentences.
    • Correct punctuation is vital when using non-defining relative clauses because it helps clarify the structure and meaning of the sentence. The use of commas to set off these clauses indicates that the information provided is supplementary and not essential. This distinction prevents misinterpretation and ensures that readers understand which parts of the sentence are primary and which parts are additional context. Incorrect punctuation can lead to confusion about whether certain details are critical to the meaning of the sentence.
  • Evaluate how non-defining relative clauses contribute to more sophisticated writing styles and effective communication.
    • Non-defining relative clauses significantly enhance writing styles by allowing for more nuanced expression and detailed elaboration. By incorporating these clauses, writers can add layers of information that enrich their descriptions and provide clarity without overwhelming the reader. This complexity enables authors to convey character traits, settings, or situations effectively while maintaining a clear structure. The skillful use of non-defining relative clauses demonstrates an understanding of advanced grammatical techniques that elevate overall communication and engage readers more deeply.