Conjugation of Se Brosser les Dents in French: Complete Tense Guide

Conjugation of Se Brosser les Dents in French: Complete Tables and Guide

Talking about your daily routine (la routine quotidienne) is one of the very first milestones in French fluency. Among the most frequent actions is "se brosser les dents" (to brush one's teeth).

Because this phrase combines a regular first-group verb (-er), a reflexive pronoun (se), and a definite article (les), it presents several unique grammatical subtleties. In this comprehensive guide, we break down its conjugations across all essential tenses, explain the tricky past participle agreement rule, and point out frequent pitfalls for English speakers.

1. How Reflexive Verbs Work with Body Parts

In English, you say "I brush my teeth", using a possessive adjective (my). French handles body parts differently: because the action is already directed at oneself via the reflexive pronoun, French uses the definite article les instead of a possessive pronoun.

• Correct: Je me brosse les dents.
• Incorrect: Je me brosse mes dents. (redundant in French)

• Je -> me
• Tu -> te
• Il / Elle / On -> se
• Nous -> nous
• Vous -> vous
• Ils / Elles -> se

Here are the reflexive pronouns paired with their subjects:

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2. Complete Tense-by-Tense Conjugation Charts

Present Indicative (Présent)

Used for current habits and immediate actions.

Passé Composé: The Past Participle Agreement Trap

All reflexive verbs take the auxiliary être in compound past tenses. In standard French grammar, the past participle of a reflexive verb agrees with the direct object (COD) only if the direct object precedes the verb.

• What did she brush? Les dents (direct object).
• Where is les dents located? After the verb.
• Therefore: no agreement is made. Brossé stays masculine singular, regardless of who brushes their teeth.

In « Elle s'est brossé les dents »:

• Je me suis brossé les dents (I brushed my teeth)
• Tu t'es brossé les dents
• Il / Elle / On s'est brossé les dents (never write "brossée")
• Nous nous sommes brossé les dents (never write "brossés")
• Vous vous êtes brossé les dents
• Ils / Elles se sont brossé les dents

Imperfect (Imparfait)

Used for repeated past actions or continuous past states ("I used to brush..." or "I was brushing...").

• Je me brossais les dents
• Tu te brossais les dents
• Il / Elle / On se brossait les dents
• Nous nous brossions les dents
• Vous vous brossiez les dents
• Ils / Elles se brossaient les dents

Simple Future (Futur Simple)

Used for planned or scheduled future occurrences.

• Je me brosserai les dents (I will brush my teeth)
• Tu te brosseras les dents
• Il / Elle / On se brossera les dents
• Nous nous brosserons les dents
• Vous vous brosserez les dents
• Ils / Elles se brosseront les dents

Present Conditional (Conditionnel Présent)

Used for hypothetical scenarios or polite recommendations.

• Je me brosserais les dents (I would brush my teeth)
• Tu te brosserais les dents
• Il / Elle / On se brosserait les dents
• Nous nous brosserions les dents
• Vous vous brosseriez les dents
• Ils / Elles se brosseraient les dents

Present Subjunctive (Subjonctif Présent)

Triggered after verbs of obligation, necessity, or emotion (e.g., Il faut que...).

• Que je me brosse les dents
• Que tu te brosses les dents
• Qu'il / elle / on se brosse les dents
• Que nous nous brossions les dents
• Que vous vous brossiez les dents
• Qu'ils / elles se brossent les dents

Imperative (Impératif)

In commands, notice the pronoun switch: te turns into -toi after the verb in positive commands, but stays te before the verb in negative commands.

• Affirmative:
• Brosse-toi les dents ! (Brush your teeth!)
• Brossons-nous les dents ! (Let's brush our teeth!)
• Brossez-vous les dents ! (Brush your teeth! - formal/plural)
• Negative:
• Ne te brosse pas les dents ! (Don't brush your teeth!)
• Ne nous brossons pas les dents ! (Let's not brush our teeth!)
• Ne vous brossez pas les dents ! (Don't brush your teeth!)

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3. Key Takeaways for Learners

1. Always use "les", not "mes/tes/ses" when specifying teeth with se brosser.

2. Auxiliary is always être in compound tenses.

3. Never add "e" or "s" to "brossé" in se brosser les dents, because the direct object follows the verb.

With these charts and rules handy, you can accurately describe your morning and evening hygiene routines in French without making common grammatical errors.