C1 Advanced Syntax 7 min read Medium

Persuading to believe vs. to do ('persuader que' vs 'de')

Link 'que' to facts and 'de' to actions when using verbs of persuasion to sound naturally C1.

Grammar Rule in 30 Seconds

Use 'persuader que' for beliefs (facts/opinions) and 'persuader de' for actions (getting someone to do something).

  • Persuader que + indicative/subjunctive: Focuses on changing a mental state (e.g., 'Je l'ai persuadé qu'il avait tort').
  • Persuader de + infinitive: Focuses on inciting an action (e.g., 'Je l'ai persuadé de partir').
  • The object pronoun (le/la/les) is mandatory before the verb in both cases.
Subject + [le|la|les] + persuader + (que + clause OR de + infinitive)

Overview

Ever tried to convince your flatmate that it’s actually their turn to do the dishes? Or maybe you're trying to persuade your boss that you definitely deserve that remote work Friday? In French, these two scenarios—changing someone's mind about a fact versus getting them to actually do something—require two completely different sentence structures.

It's the difference between persuader que and persuader de. If you've ever felt like your French sentences were hitting a wall, it might be because you're mixing up your facts with your actions. It's a classic C1 trap, but once you see the logic, it’s like upgrading from a flip phone to a smartphone.

You suddenly have much more control over the conversation.

French verbs of persuasion like persuader (to persuade) and convaincre (to convince) are double agents. They change their grammar depending on what you’re trying to achieve. When you want someone to believe a statement is true, you use que followed by a full clause.

When you want someone to physically do something, you use de followed by an infinitive. It sounds simple, but in the heat of a fast-paced WhatsApp debate or a high-stakes Zoom interview, it’s easy to slip up. Think of it this way: que points to a thought in the head, while de points to a hand on a keyboard.

Getting this right makes you sound like a native speaker who has actually lived in Paris, rather than someone who just memorized a dictionary during a very long flight. Plus, it saves you from those awkward silences where the other person is waiting for the rest of your sentence that never comes. It's about precision, and at C1, precision is your best friend.

Just don't use it to persuade your friends that your terrible taste in 80s synth-pop is 'objectively good'—some things are beyond the power of grammar.

How This Grammar Works

The logic here is all about the 'target' of your persuasion. In French, we distinguish between 'persuasion of the mind' and 'persuasion of the will'.
  • When you persuade the mind, you are dealing with information. You are saying: "Hey, this thing is true." Because a 'thing being true' is a whole concept, it needs a full sentence (a clause) to explain it. That’s why we use que.
  • When you persuade the will, you are dealing with an action. You are saying: "Hey, go do this." Since an action is just a verb, we link it directly with de.
It's a very efficient system. The little word que or de acts as a signal to your listener about what’s coming next. It's like a road sign: que means 'Fact Ahead', and de means 'Action Ahead'.
If you use the wrong sign, your listener might get a bit lost in the suburbs of your sentence. This pattern isn't just for persuader; it’s a whole family of verbs including convaincre le(m), assurer le(m), and prévenir le(m). They all play by these same rules.
It’s like a secret club where the entry fee is just knowing which preposition to use.

Formation Pattern

1
Persuading of a Fact (The 'Que' Structure):
2
[Subject] + [Verb] + [Person] + que + [Full Clause].
3
Example: Je persuade Marc que le train est déjà parti. (I am persuading Marc that the train has already left.)
4
Note: The verb after que is usually in the indicative because you are stating a fact, but if you're expressing doubt or using a negative, the subjunctive might sneak in.
5
Persuading to Action (The 'De' Structure):
6
[Subject] + [Verb] + [Person] + de + [Infinitive Verb].
7
Example: Je persuade Marc de prendre le bus. (I am persuading Marc to take the bus.)
8
Note: The de here is mandatory. Without it, the sentence falls apart like a cheap croissant.
9
Reflexive Version (Persuading Yourself):
10
[Subject] + se persuader + que/de ...
11
Example: Elle se persuade qu'elle a raison. (She's convincing herself she's right.)
12
This follows the exact same logic, just applied to your own brain. It's the grammar of self-delusion—perfect for when you're trying to convince yourself that one more episode of that Netflix series won't ruin your morning.

When To Use It

You’ll use the que construction when you’re arguing, debating, or sharing news. Think of social media comments or debating which movie to watch. If you're saying "I'm telling you, this is how it is," use que. It’s for the 'what'.
You’ll use the de construction when you’re asking for favors, giving advice, or negotiating. Think of asking your landlord to fix the sink or convincing a friend to come to a party. If you're saying "I want you to do this," use de. It’s for the 'do'.
In professional settings, convaincre is often preferred over persuader. In a job interview, you might want to convaincre le recruteur que vous êtes le meilleur candidat (persuade the recruiter that you are the best candidate - fact) and then le convaincre de vous embaucher (persuade him to hire you - action). See how they work together?
It's a two-step dance. First, you change their mind, then you change their behavior. If you only do the first part, you're just a philosopher.
If you only do the second, you're a magician. To be a C1 master, you need to be both.

Common Mistakes

The #1 mistake is forgetting the de before the infinitive. People often say Je l'ai persuadé venir instead of Je l'ai persuadé de venir. It sounds naked to a French ear.
Another big one is using que for an action. Je l'ai persuadé qu'il vienne is technically possible but sounds clunky and over-complicated. Native speakers will almost always prefer the infinitive with de for actions.
Then there’s the 'Agreement' trap. When you use a direct object pronoun (like le, la, les) before the verb in the passé composé, you might be tempted to agree the past participle. Je l'ai persuadée de partir. This is correct! But people often forget to do it or, worse, do it when they shouldn't.
Finally, don't confuse persuader quelqu'un with promettre à quelqu'un. Persuader takes a direct object (the person you're persuading), while promettre takes an indirect object (à). If you say Je lui ai persuadé..., you're treating it like promettre. Use Je l'ai persuadé... instead. Grammar is like a recipe: one wrong ingredient and the whole thing tastes like soap.

Contrast With Similar Patterns

How does this differ from dire or demander?
Dire can also take both: Il me dit qu'il vient (He tells me he's coming - fact) vs Il me dit de venir (He tells me to come - command). The logic is similar, but persuader carries much more weight. Dire is just passing info; persuader is an active effort.
What about proposer? Proposer is usually proposer à quelqu'un de faire quelque chose. Notice the à! Persuader doesn't want that à. It wants to grab the person directly.
Then there's convaincre. For 95% of situations, convaincre and persuader are interchangeable. However, convaincre is often seen as more rational (based on logic), while persuader can be more emotional (based on feelings).
If you're using a spreadsheet to prove a point, you're convincing. If you're using puppy-dog eyes, you're persuading. But grammatically, they are twins.
They both use que for facts and de for actions. Just don't try to use 'puppy-dog eyes' in a French tax audit; they prefer the spreadsheet.

Quick FAQ

Q

Can I use que with the subjunctive?

Yes, if the main clause is negative or a question. Je ne suis pas persuadé qu'il ait raison. It adds a layer of doubt.

Q

Is it persuader à quelqu'un?

No! It's always persuader quelqu'un. No à allowed.

Q

What if I'm persuading them not to do something?

Just add ne pas after de. Je l'ai persuadé de ne pas partir. Simple!

Q

Is persuader used in texting?

Totally. "J'ai essayé de le persuader de venir, mais il est trop fatigué." (I tried to persuade him to come, but he's too tired.)

Q

Can I use this with objects?

Not really. You persuade people (or yourself), not your car or your computer. Unless you're having a very bad day with technology.

Q

Does persuader que always mean a fact?

Mostly, but it can also be an opinion or a belief. Anything that can be expressed as a full sentence statement.

Formation of Persuader

Form Cognitive (Belief) Action (Deed)
Affirmative
Je le persuade que...
Je le persuade de...
Negative
Je ne le persuade pas que...
Je ne le persuade pas de...
Interrogative
Le persuades-tu que...?
Le persuades-tu de...?
Passé Composé
Je l'ai persuadé que...
Je l'ai persuadé de...
Futur Simple
Je le persuaderai que...
Je le persuaderai de...
Conditionnel
Je le persuaderais que...
Je le persuaderais de...

Meanings

The verb 'persuader' changes its syntactic requirements based on whether the goal is to alter a belief or to trigger a physical action.

1

Cognitive Persuasion

To convince someone of the truth of a fact or opinion.

“Il m'a persuadé qu'il était innocent.”

“Nous les avons persuadés que le projet était viable.”

2

Action-Oriented Persuasion

To influence someone to perform a specific action.

“Il m'a persuadé de signer le contrat.”

“Ils nous ont persuadés de venir avec eux.”

Reference Table

Reference table for Persuading to believe vs. to do ('persuader que' vs 'de')
Form Structure Example
Affirmative
S + DO + V + que + Clause
Je le persuade qu'il a tort.
Affirmative
S + DO + V + de + Inf
Je le persuade de partir.
Negative
S + ne + DO + V + pas + que
Je ne le persuade pas qu'il a tort.
Negative
S + ne + DO + V + pas + de
Je ne le persuade pas de partir.
Question
DO + V + S + que + Clause?
Le persuades-tu qu'il a tort?
Question
DO + V + S + de + Inf?
Le persuades-tu de partir?
Short Answer
Oui, je le persuade.
Oui, je le persuade.
Passive
Il est persuadé que...
Il est persuadé de...

Formality Spectrum

Formal
Je vous persuade de signer ce contrat.

Je vous persuade de signer ce contrat. (Business)

Neutral
Je vous persuade de signer.

Je vous persuade de signer. (Business)

Informal
Je te persuade de signer.

Je te persuade de signer. (Business)

Slang
Allez, signe !

Allez, signe ! (Business)

Persuader Logic

Persuader

Cognitive

  • que that

Action

  • de to

Persuader que vs de

Que
Je le persuade qu'il est temps. I persuade him that it is time.
De
Je le persuade de partir. I persuade him to leave.

Decision Flowchart

1

Is the goal a thought?

YES
Use 'que'
NO
Use 'de' + infinitive

Usage Scenarios

💼

Professional

  • Negotiations
  • Meetings
  • Contracts
🏠

Personal

  • Family
  • Friends
  • Travel

Examples by Level

1

Il m'a persuadé de manger.

He persuaded me to eat.

2

Je l'ai persuadé que c'est vrai.

I persuaded him that it is true.

3

Elle nous a persuadés de partir.

She persuaded us to leave.

4

Il m'a persuadé que j'ai tort.

He persuaded me that I am wrong.

1

Ils m'ont persuadé de venir avec eux.

They persuaded me to come with them.

2

Je l'ai persuadé que le film était bon.

I persuaded him that the movie was good.

3

Elle a persuadé son frère de dormir.

She persuaded her brother to sleep.

4

Nous l'avons persuadé que c'était fini.

We persuaded him that it was over.

1

Le directeur a persuadé les employés de travailler plus.

The manager persuaded the employees to work more.

2

J'ai réussi à le persuader que la situation était grave.

I managed to persuade him that the situation was serious.

3

Ils nous ont persuadés de changer de stratégie.

They persuaded us to change strategy.

4

Elle m'a persuadé que tout irait bien.

She persuaded me that everything would be fine.

1

Il a fallu beaucoup d'efforts pour le persuader de signer.

It took a lot of effort to persuade him to sign.

2

Elle a fini par me persuader que mon analyse était erronée.

She eventually persuaded me that my analysis was flawed.

3

Le gouvernement a persuadé la population de se faire vacciner.

The government persuaded the population to get vaccinated.

4

Il a tenté de me persuader que le projet était viable.

He tried to persuade me that the project was viable.

1

Il a su me persuader de l'importance de cette réforme.

He knew how to persuade me of the importance of this reform.

2

Je ne suis pas convaincu qu'il ait pu le persuader que c'était la seule issue.

I am not convinced he could have persuaded him that it was the only way out.

3

Elle a réussi à persuader les sceptiques de se rallier à sa cause.

She managed to persuade the skeptics to join her cause.

4

Il m'a persuadé que, malgré les apparences, le succès était à portée de main.

He persuaded me that, despite appearances, success was within reach.

1

Nul ne saurait le persuader de renoncer à ses convictions.

No one could persuade him to renounce his convictions.

2

Il a cherché à nous persuader que le destin, en soi, n'est qu'une illusion.

He sought to persuade us that destiny, in itself, is but an illusion.

3

Elle a été persuadée de ne point intervenir dans ce conflit.

She was persuaded not to intervene in this conflict.

4

Il a réussi à persuader l'auditoire que la vérité était ailleurs.

He managed to persuade the audience that the truth was elsewhere.

Easily Confused

Persuading to believe vs. to do ('persuader que' vs 'de') vs Convaincre vs Persuader

Both mean to convince, but they have different syntactic and semantic nuances.

Persuading to believe vs. to do ('persuader que' vs 'de') vs Persuader à vs Persuader de

Learners often use 'à' because of English 'to'.

Persuading to believe vs. to do ('persuader que' vs 'de') vs Persuader vs Pousser

Both can mean to influence, but 'pousser' is more forceful.

Common Mistakes

Je persuade à lui de venir.

Je le persuade de venir.

Persuader takes a direct object, not indirect.

Je persuade que il vient.

Je le persuade qu'il vient.

Missing direct object.

Je persuade de venir.

Je le persuade de venir.

Missing object.

Je persuade à venir.

Je le persuade de venir.

Wrong preposition.

Il m'a persuadé à faire ça.

Il m'a persuadé de faire ça.

Wrong preposition after persuader.

Je l'ai persuadé que faire.

Je l'ai persuadé de faire.

Confusing 'que' and 'de'.

Il a persuadé que c'est bon.

Il m'a persuadé que c'est bon.

Missing object.

Il a été persuadé à partir.

Il a été persuadé de partir.

Passive voice still requires 'de'.

Je l'ai persuadé que de venir.

Je l'ai persuadé de venir.

Redundant 'que'.

Il m'a persuadé que je viens.

Il m'a persuadé que je vienne.

Subjunctive nuance.

Il a persuadé à ce que je vienne.

Il m'a persuadé de venir.

Over-complicating with 'à ce que'.

Il a persuadé que je fasse.

Il m'a persuadé de faire.

Wrong structure for action.

Je l'ai persuadé à la vérité.

Je l'ai persuadé de la vérité.

Wrong preposition.

Il a persuadé que c'était le cas.

Il m'a persuadé que c'était le cas.

Missing object.

Sentence Patterns

Je ___ persuadé de ___.

Il m'a persuadé que ___.

___-tu persuadé de ___ ?

Elle a réussi à ___ persuader que ___.

Real World Usage

Job Interview common

J'ai persuadé le recruteur que j'étais le candidat idéal.

Texting constant

Je t'ai persuadé de venir ?

Social Media common

Il a persuadé ses abonnés que la marque est éthique.

Travel occasional

Il m'a persuadé de prendre le train.

Food Delivery occasional

L'app m'a persuadé de commander ce plat.

Board Meeting common

Nous avons persuadé le conseil de valider le budget.

💡

The 'De' Rule

Always remember that 'de' is the bridge to an action. If you see a verb following 'persuader', it must be preceded by 'de'.
⚠️

Avoid 'à'

The most common mistake is using 'à' because of English. Force yourself to say 'de' every time.
🎯

Direct Object

Never forget the person. 'J'ai persuadé de venir' is wrong; 'Je l'ai persuadé de venir' is correct.
💬

Register

In formal settings, use 'persuader' to show you are being thoughtful and persuasive rather than forceful.

Smart Tips

Immediately think 'de' + infinitive.

Je l'ai persuadé à venir. Je l'ai persuadé de venir.

Use 'que' + clause.

Je l'ai persuadé de c'est vrai. Je l'ai persuadé que c'est vrai.

Always include a direct object pronoun.

J'ai persuadé de venir. Je l'ai persuadé de venir.

Use 'persuader' instead of 'pousser' for a more professional tone.

Je l'ai poussé à signer. Je l'ai persuadé de signer.

Pronunciation

pɛʁ.sɥa.de.zɑ̃

Liaison

In 'persuadez-en', the 'z' sounds like 'z'.

/y/

Vowel sound

The 'u' in 'persuader' is a high front rounded vowel.

Rising

Le persuades-tu ? ↗

Questioning tone.

Falling

Je le persuade. ↘

Assertive tone.

Memorize It

Mnemonic

Think 'Que' for 'Questioning the mind' and 'De' for 'Doing the deed'.

Visual Association

Imagine a brain for 'que' and a pair of running shoes for 'de'.

Rhyme

Que for the head, De for the tread.

Story

I tried to persuade my friend that the sky was green (que). He didn't believe me. So I persuaded him to go outside and look (de).

Word Web

convaincreinfluencerinciterpousserdémontrerprouver

Challenge

Write two sentences: one persuading a friend that a movie is bad (que) and one persuading them to watch a different one (de).

Cultural Notes

In French business culture, persuasion is often indirect. Using 'persuader' correctly shows respect for the other's agency.

Similar to France, but 'convaincre' is slightly more common in daily speech.

Very formal usage is preferred in professional settings.

From Latin 'persuadere', meaning to advise or convince.

Conversation Starters

Comment persuader quelqu'un de changer d'avis ?

Peux-tu me persuader que le français est facile ?

As-tu déjà persuadé un ami de faire quelque chose de fou ?

Qu'est-ce qui pourrait te persuader que le futur sera meilleur ?

Journal Prompts

Décris une fois où tu as persuadé quelqu'un de faire une action.
Écris un argument pour persuader ton patron que tu mérites une augmentation.
Raconte une histoire où tu as essayé de persuader quelqu'un de quelque chose, mais sans succès.
Comment persuader un ami de visiter ton pays ?

Common Mistakes

Incorrect

Correct


Incorrect

Correct


Incorrect

Correct


Incorrect

Correct

Test Yourself

Fill in the blank with 'que' or 'de'.

Je l'ai persuadé ___ venir.

✓ Correct! ✗ Not quite. Correct answer: de
Action requires 'de'.
Choose the correct sentence. Multiple Choice

Which is correct?

✓ Correct! ✗ Not quite. Correct answer: Je l'ai persuadé de venir.
Correct preposition and structure.
Correct the error. Error Correction

Find and fix the mistake:

Il m'a persuadé à partir.

✓ Correct! ✗ Not quite. Correct answer: Il m'a persuadé de partir.
Wrong preposition.
Transform to negative. Sentence Transformation

Je le persuade de venir.

✓ Correct! ✗ Not quite. Correct answer: Je ne le persuade pas de venir.
Negation placement.
Match the usage. Match Pairs

Match each item on the left with its pair on the right:

✓ Correct! ✗ Not quite. Correct answer: que: belief
Que is for thoughts.
Build a sentence. Sentence Building

persuadé / je / de / le / partir

✓ Correct! ✗ Not quite. Correct answer: Je l'ai persuadé de partir.
Correct word order.
Select the correct form. Multiple Choice

Elle ___ persuadé que c'était vrai.

✓ Correct! ✗ Not quite. Correct answer: l'a
Direct object pronoun.
Fill in the blank.

Il m'a persuadé ___ j'avais tort.

✓ Correct! ✗ Not quite. Correct answer: que
Belief requires 'que'.

Score: /8

Practice Exercises

8 exercises
Fill in the blank with 'que' or 'de'.

Je l'ai persuadé ___ venir.

✓ Correct! ✗ Not quite. Correct answer: de
Action requires 'de'.
Choose the correct sentence. Multiple Choice

Which is correct?

✓ Correct! ✗ Not quite. Correct answer: Je l'ai persuadé de venir.
Correct preposition and structure.
Correct the error. Error Correction

Find and fix the mistake:

Il m'a persuadé à partir.

✓ Correct! ✗ Not quite. Correct answer: Il m'a persuadé de partir.
Wrong preposition.
Transform to negative. Sentence Transformation

Je le persuade de venir.

✓ Correct! ✗ Not quite. Correct answer: Je ne le persuade pas de venir.
Negation placement.
Match the usage. Match Pairs

Match the meaning.

✓ Correct! ✗ Not quite. Correct answer: que: belief
Que is for thoughts.
Build a sentence. Sentence Building

persuadé / je / de / le / partir

✓ Correct! ✗ Not quite. Correct answer: Je l'ai persuadé de partir.
Correct word order.
Select the correct form. Multiple Choice

Elle ___ persuadé que c'était vrai.

✓ Correct! ✗ Not quite. Correct answer: l'a
Direct object pronoun.
Fill in the blank.

Il m'a persuadé ___ j'avais tort.

✓ Correct! ✗ Not quite. Correct answer: que
Belief requires 'que'.

Score: /8

Practice Bank

10 exercises
Complete the sentence. Fill in the Blank

Nous les avons convaincus ___ ne pas supprimer leur compte Instagram.

✓ Correct! ✗ Not quite. Correct answer: de
Put the words in the correct order. Sentence Reorder

persuader / l' / de / ai / j' / attendre / .

✓ Correct! ✗ Not quite. Correct answer: Je l'ai persuadé d'attendre.
Translate to French. Translation

He convinced me that he was tired.

✓ Correct! ✗ Not quite. Correct answer: Il m'a convaincu qu'il était fatigué.
Select the formal version. Multiple Choice

Which one is most appropriate for a business email?

✓ Correct! ✗ Not quite. Correct answer: Je souhaite vous convaincre de la pertinence de mon projet.
Correct the pronoun usage. Error Correction

Je lui ai persuadé de rester.

✓ Correct! ✗ Not quite. Correct answer: Je l'ai persuadé de rester.
Match the start to the correct ending. Match Pairs

Match the following:

✓ Correct! ✗ Not quite. Correct answer: Persuader que... | ...c'est vrai
Fact or Action? Fill in the Blank

Il l'a persuadé ___ l'offre était limitée.

✓ Correct! ✗ Not quite. Correct answer: que
Identify the reflexive persuasion. Multiple Choice

Which sentence means 'I convinced myself to try'?

✓ Correct! ✗ Not quite. Correct answer: Je me suis persuadé d'essayer.
Translate to French. Translation

Persuade them to call back.

✓ Correct! ✗ Not quite. Correct answer: Persuade-les de rappeler.
Find the mistake. Error Correction

Elle l'a persuadé que son chat était un génie.

✓ Correct! ✗ Not quite. Correct answer: No mistake.

Score: /10

FAQ (8)

No, 'persuader' is a transitive verb. You must always specify who is being persuaded.

No, it is a common error. Always use 'de' for actions.

Usually, yes. However, if there is doubt, the subjunctive can be used.

Convaincre is more logical/evidence-based; Persuader is more psychological.

Yes, 'Il a été persuadé de partir'.

It is neutral, but often used in professional contexts.

Yes, 'Je l'ai persuadé de la vérité'.

Because English uses 'to' which maps to 'à', leading to the 'persuader à' error.

Scaffolded Practice

1

1

2

2

3

3

4

4

Mastery Progress

Needs Practice

Improving

Strong

Mastered

In Other Languages

Spanish high

Persuadir de que / Persuadir a

Spanish uses 'a' for the infinitive, French uses 'de'.

German moderate

Überzeugen

German uses two different verbs for the two meanings.

Japanese low

説得する (settoku suru)

No syntactic difference between belief and action.

Arabic low

إقناع (iqna')

Syntactic structure is entirely different.

Chinese low

说服 (shuōfú)

No prepositional distinction.

English moderate

Persuade

French requires a direct object pronoun.

Learning Path

Prerequisites

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