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French Modal Verbs: How to Use Pouvoir, Devoir, and Vouloir

Learn how to use pouvoir, devoir, and vouloir to say what you can, must, and want to do in French. See their present tense forms, simple examples, and common mistakes to avoid.

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French As You Like It — Paris

Want to say “I can,” “I have to,” or “I want to” in French? Then you need to know three important verbs: pouvoir, devoir, and vouloir. These verbs are used in many everyday French sentences, so learning them can quickly help you speak with more confidence.

They are similar to modal verbs in English and help you talk about what you can do, need to do, or want to do.

  • Pouvoir = can / to be able to
  • Devoir = must / have to
  • Vouloir = want to

For example, you can use them to say that you can speak French, have to study, or want to travel. Once you understand how these three verbs work, you can create many useful French sentences more easily.

What Are Modal Verbs in French?

Modal verbs are special verbs that help us express ideas like ability, obligation, or desire. They are usually used with another verb to explain what someone can do, must do, or wants to do.

The basic sentence structure is:

Subject + modal verb + infinitive

The modal verb is conjugated to match the subject, while the second verb usually stays in its infinitive form.

For example:

Je peux parler français.
I can speak French.

Here, peux is the conjugated form of pouvoir (can), while parler stays in its infinitive form (to speak). This simple pattern makes it easy to create many useful French sentences.

Pouvoir: How to Say “Can” in French

Pouvoir is one of the most useful French verbs for talking about what you can do. It means “can” or “to be able to” and can also be used to talk about possibility or permission.

Present Tense of Pouvoir

Here is how pouvoir is conjugated in the present tense:

SubjectConjugation
Jepeux
Tupeux
Il / Elle / Onpeut
Nouspouvons
Vouspouvez
Ils / Ellespeuvent

When pouvoir is followed by another verb, the second verb stays in the infinitive form.

Je peux venir demain.
I can come tomorrow.

Nous pouvons commencer.
We can start.

Asking Questions with Pouvoir

You can also use pouvoir to ask for permission or make a polite request.

Est-ce que je peux entrer ?
Can I come in?

Pouvez-vous m'aider ?
Can you help me?

Making Pouvoir Negative

To say that someone cannot do something, put ne...pas around the conjugated form of pouvoir.

Je ne peux pas venir.
I cannot come.

Elle ne peut pas conduire.
She cannot drive.

Devoir: How to Say “Must” or “Have To”

Need to say that something is important or that you have to do something in French? You can use the verb devoir. It means “must” or “have to” and is used to talk about duties, rules, and things you need to do. Depending on the situation, it can also mean “should.”

Present Tense of Devoir

Here is how devoir changes with each subject in the present tense:

SubjectConjugation
Jedois
Tudois
Il / Elle / Ondoit
Nousdevons
Vousdevez
Ils / Ellesdoivent

Use devoir before an infinitive to talk about something you need to do.

Je dois partir maintenant.
I have to leave now.

Nous devons travailler.
We have to work.

Tu dois étudier.
You must study.

Using Devoir in Negative Sentences

To make devoir negative, place ne...pas around the conjugated verb.

Je ne dois pas partir.
I must not leave.

Remember: Je ne dois pas usually means that you must not do something. It does not usually mean that you do not have to do it.

Vouloir: How to Say “Want” in French

The French verb vouloir means “to want” and is used to express what you want to do or have. It is useful in everyday conversations, whether you are talking about your plans, sharing your wishes, or asking for something politely. Learning how to use vouloir will help you express yourself more clearly in French.

Present Tense of Vouloir

Here is how vouloir changes with each subject in the present tense:

SubjectConjugation
Jeveux
Tuveux
Il / Elle / Onveut
Nousvoulons
Vousvoulez
Ils / Ellesveulent

Use vouloir before an infinitive when you want to say what someone wants to do.

Je veux apprendre le français.
I want to learn French.

Nous voulons visiter Paris.
We want to visit Paris.

Je veux vs. Je voudrais

Je veux means “I want.” It is correct, but it can sometimes sound too direct, especially when asking for something.

Je voudrais means I would like and is usually more polite.

At a café, you might say:

Je voudrais un café, s'il vous plaît.
I would like a coffee, please.

This is a polite and natural way to ask for something in French.

Pouvoir vs. Devoir vs. Vouloir

Pouvoir, devoir, and vouloir are three common French verbs, but each has a different meaning. They help you talk about what you can do, what you have to do, and what you want to do. Understanding the difference will help you choose the right verb when speaking or writing in French.

VerbMeaningExampleEnglish
PouvoirAbility or possibilityJe peux venir.I can come.
DevoirObligation or necessityJe dois venir.I have to come.
VouloirDesire or intentionJe veux venir.I want to come.

A simple way to remember them is:

  • Pouvoir → what you can do
  • Devoir → what you have to do
  • Vouloir → what you want to do

Using These Verbs in Everyday French

You will hear pouvoir, devoir, and vouloir often in everyday French. They are useful when talking about what you can do, what you need to do, or what you want to do.

At a restaurant:

Je voudrais le menu, s'il vous plaît.
I would like the menu, please.

When talking about work:

Je dois travailler demain.
I have to work tomorrow.

When making plans:

Je peux venir samedi.
I can come on Saturday.

When talking about something you want to do:

Je veux visiter la France.
I want to visit France.

Learning sentences like these will help you understand how these verbs are used in real conversations.

Common Mistakes to Avoid

When using pouvoir, devoir, and vouloir, remember that the second verb usually stays in its infinitive form. Here are some common mistakes to watch out for.

1. Conjugating both verbs

Incorrect:

Je peux parle français.

Correct:

Je peux parler français.

Only pouvoir is conjugated. Parler stays in the infinitive form.

2. Mixing up pouvoir and devoir

These verbs may look similar in a sentence, but they have different meanings.

  • Je peux partir. means I can leave.
  • Je dois partir. means I have to leave.

3. Using je veux for polite requests

Je veux means “I want.” It is grammatically correct, but it can sound too direct when asking for something. In these situations, je voudrais (I would like) is usually more polite.

Conclusion

Pouvoir, devoir, and vouloir are useful French verbs that help you express different ideas in everyday conversations.

Use pouvoir to talk about ability or possibility (what you can do). Use devoir to talk about obligation or necessity (what you have to do). Use vouloir when talking about wants and intentions (what you want to do).

Remember the basic pattern: conjugated verb + infinitive. With a little practice, you will find it easier to use these verbs in your own French sentences.

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