Non-defining clauses in French explain how to add extra information to a sentence using commas and relative pronouns without changing the main meaning.

Non-defining clauses (les propositions relatives explicatives) are used to add extra information about a noun or pronoun without changing the main point of the sentence. Unlike defining clauses, which are essential to the meaning, non-defining clauses just provide additional details and are set off by commas.
  • Add extra, non-essential information
  • Always use commas around the clause
  • Use relative pronouns like qui, que, or dont
  • The main sentence would still make sense if the clause were removed

Forming Non-defining Clauses

A non-defining clause begins with a relative pronoun and is separated by commas.
  • qui → refers to a person or subject
  • que → refers to a direct object
  • dont → refers to something introduced with “de”
  • → refers to a place or time
Example:
Cette auteure, qui est française, écrit des romans.
(This author, who is French, writes novels.)
  • The clause “qui est française” is extra information about “cette auteure.”
  • Commas indicate it’s non-defining.

Which relative pronouns can begin a non-defining clause in French?


qui, que, dont, où
Non-defining clauses in French typically begin with one of the relative pronouns: "qui", "que", "dont", or "où", depending on the role of the noun in the clause.

Commas Usage

Commas are crucial in separating non-defining clauses from the main sentence.
  • Always place a comma before the relative pronoun and after the clause if it falls in the middle of the sentence.
  • If the clause is at the end, just use a comma before the clause.
Example:
Mon frère, qui habite à Paris, viendra ce week-end.
(My brother, who lives in Paris, is coming this weekend.)
  • Without commas, the sentence would suggest I have more than one brother.

Relative Pronouns in Non-defining Clauses

Here is a handy guide to which relative pronouns to use depending on their role:
RolePronounExampleTranslation
Subject (person or thing)quiLa voiture, qui est rouge, est rapide.The car, which is red, is fast.
Direct objectqueParis, que j’aime, est belle.Paris, which I love, is beautiful.
Possession (“de” phrases)dontMon ami, dont la sœur est médecin, est gentil.My friend, whose sister is a doctor, is kind.
Place/Time, je suis né, était une année spéciale., when/where I was born, was a special year.

Examples

Here are some examples showing how non-defining clauses add extra but non-essential information:
French ExampleEnglish Example
Marie, qui est ingénieure, adore voyager.Marie, who is an engineer, loves to travel.
Le Louvre, qui se trouve à Paris, est un musée célèbre.The Louvre, which is located in Paris, is a famous museum.
Mon oncle, dont le chien est très joueur, vient ce soir.My uncle, whose dog is very playful, is coming tonight.
J’ai visité Rome, où j’ai mangé une pizza délicieuse.I visited Rome, where I ate a delicious pizza.
  • Notice how the clauses add interesting details without changing the main sentence.

Common Mistakes

  • Forgetting commas: Non-defining clauses must be separated by commas.
  • Using wrong relative pronouns: Follow the role (subject, object, possession, place/time).
  • Confusing defining vs. non-defining: Non-defining clauses add info and are set off by commas; defining clauses are essential and have no commas.
Incorrect:
Mon frère qui habite à Paris viendra.
Correct:
Mon frère, qui habite à Paris, viendra.

Summary

  • Non-defining clauses add extra information and are always set off by commas.
  • Use qui, que, dont, or depending on the role of the relative pronoun.
  • The main sentence still makes sense if the non-defining clause is removed.
  • Proper use of commas is essential to avoid confusion.

Which relative pronouns are used in non-defining clauses based on their role?


Subject → qui; Direct object → que; Possession → dont; Place/time → où
The choice of relative pronoun depends on its grammatical role in the clause: 'qui' for subjects, 'que' for direct objects, 'dont' for possession, and 'où' for place/time.

Flashcards (1 of 4)

    • English Example: Marie, who is an engineer, loves to travel.

    Last updated: Thu Jun 12, 2025

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