Perdre du Poids French Conjugation: Comprehensive Guide, Tenses & Usage
"Perdre du poids" French Conjugation: Verb Tables, Grammar Rules, and Everyday Usage
Whether you are studying for a French proficiency exam like the DELF/DALF or simply looking to talk comfortably about health, nutrition, and fitness, the phrase « perdre du poids » (to lose weight) is a fundamental expression to master.
In French, this structure pairs the third-group verb perdre (to lose) with the noun phrase du poids (weight). Because it involves an irregular third-group verb pattern and partitive articles, English speakers often stumble over both its conjugation and its syntactic rules. This guide walks you through every major tense, provides practical examples, and explains essential grammar pitfalls.
1. Anatomy of the Verb « Perdre »
Perdre belongs to the category of regular -re verbs (often called the vendre family). While categorized historically in the 3rd group of French verbs, it follows a very predictable stem pattern based on perd-.
- Infinitive: perdre
- Present Participle: perdant
- Past Participle: perdu
- Auxiliary: avoir
2. Complete Conjugation Tables for "Perdre du poids"
Present Tense (Présent de l'indicatif)
In the present tense, drop the -re and add: -s, -s, nothing, -ons, -ez, -ent. Notice that the third-person singular (il/elle/on) has no added ending—just the radical ending in -d.
| Subject Pronoun | French Conjugation | English Translation |
|---|---|---|
| :--- | :--- | :--- |
| Je | perds du poids | I lose / I am losing weight |
| Tu | perds du poids | You lose / You are losing weight (informal) |
| Il / Elle / On | perd du poids | He / She / One loses weight |
| Nous | perdons du poids | We lose / We are losing weight |
| Vous | perdez du poids | You lose / You are losing weight (formal/plural) |
| Ils / Elles | perdent du poids | They lose / They are losing weight |
To express completed weight loss in the past, combine the auxiliary verb avoir conjugated in the present tense with the past participle perdu.
- J'ai perdu du poids (I lost weight / I have lost weight)
- Tu as perdu du poids
- Il / Elle / On a perdu du poids
- Nous avons perdu du poids
- Vous avez perdu du poids
- Ils / Elles ont perdu du poids
Example: « Paul a perdu du poids après avoir changé ses habitudes alimentaires. » (Paul lost weight after changing his eating habits.)
Imperfect Tense (Imparfait)
Use the imperfect tense for ongoing processes or habits in the past:
- Je perdais du poids (I was losing weight)
- Tu perdais du poids
- Il / Elle perdait du poids
- Nous perdions du poids
- Vous perdiez du poids
- Ils / Elles perdaient du poids
Simple Future (Futur Simple)
The stem for the simple future is formed by removing the final silent "e" from the infinitive: perdr-.
- Je perdrai du poids (I will lose weight)
- Tu perdras du poids
- Il / Elle perdra du poids
- Nous perdrons du poids
- Vous perdrez du poids
- Ils / Elles perdront du poids
Present Conditional (Conditionnel Présent)
Useful for setting conditions, making polite suggestions, or expressing goals:
- Je perdrais du poids (I would lose weight)
- Tu perdrais du poids
- Il / Elle perdrait du poids
- Nous perdrions du poids
- Vous perdriez du poids
- Ils / Elles perdraient du poids
Example: « Si je réduisais le sucre, je perdrais du poids plus facilement. » (If I cut down on sugar, I would lose weight more easily.)
Present Subjunctive (Subjonctif Présent)
Required after verbs of wishing, necessity, or emotional reactions (e.g., il faut que, je veux que):
- Que je perde du poids
- Que tu perdes du poids
- Qu'il / elle perde du poids
- Que nous perdions du poids
- Que vous perdiez du poids
- Qu'ils / elles perdent du poids
Example: « Le médecin insiste pour que tu perdes du poids. » (The doctor insists that you lose weight.)
3. Essential Grammar: The Partitive Article Rule
One of the most critical nuances when using perdre du poids relates to French partitive articles (du, de la, des).
Affirmative vs. Negative
- Je perds du poids. (I am losing weight.)
In an affirmative statement, weight is an uncountable quantity, requiring the masculine partitive du (de + le):
- Je ne perds pas de poids. (I am not losing weight.) — NOT: « Je ne perds pas du poids ».
However, under standard French negation rules, indefinite and partitive articles change to de (or d' before a vowel sound):
Specifying an Amount
- J'ai perdu cinq kilos. (I lost five kilograms.)
- Elle a perdu beaucoup de poids. (She lost a lot of weight.)
When expressing a specific quantity, drop the partitive entirely and use the number directly, or insert de when using adverbs of quantity:
4. Alternative Expressions and Useful Synonyms
To sound like a native French speaker, integrate these common lexical alternatives into your vocabulary:
1. Maigrir (2nd group regular verb):
- Meaning: To get thinner / to lose weight.
- Example: « Il a beaucoup maigri ces derniers temps. » (He has lost a lot of weight lately.)
2. Mincir (2nd group regular verb):
- Meaning: To slim down (often viewed with a positive, aesthetic connotation).
- Example: « Cette robe te fait mincir. » (This dress makes you look slimmer.)
3. Prendre du poids / Grossir (Antonyms):
- Prendre du poids is the direct opposite: "to gain weight".
- Grossir means "to get bigger / put on weight".
- Misspelling "poids": Keep both silent letters (d and s) intact in all contexts. Do not confuse poids (weight) with pois (peas) or poix (pitch/tar).
- Using the wrong auxiliary: Never say « Je suis perdu du poids ». Je suis perdu means "I am lost". Always conjugate perdre with avoir (J'ai perdu du poids).
- Adding a "t" in the 3rd person singular: Avoid writing « il pert ». The letter d from the root perd- stays untouched in the 3rd-person singular present indicative (il perd).
5. Three Common Mistakes to Avoid
By keeping these conjugation tables and grammatical quirks in mind, you will communicate clearly and accurately whenever discussing health and lifestyle goals in French.