Vouloir, Pouvoir, Devoir: The Three Modal Verbs for Polite Requests
Getting Started — Three Verbs for Requests, Permission and Necessity
After learning Aller, Faire, Venir, here are three more essential irregular verbs: vouloir (to want), pouvoir (to be able to / can), and devoir (to have to / must). These are called modal verbs because they’re always used together with another verb (an infinitive).
A key insight: “Je veux partir” (I want to leave), “Je peux partir” (I can leave), “Je dois partir” (I must leave) — ‘partir’ stays the same in all three sentences; only the modal verb changes the meaning.
Connection: In Futur Proche, you saw the ‘aller + infinitive’ pattern. Modal verbs use the same structure: modal verb (conjugated) + infinitive (unchanged).
VOULOIR (to want)
| Subject | Form | Pronunciation | English |
|---|---|---|---|
| je | veux | vuh | I want |
| tu | veux | vuh | You want (informal) |
| il/elle | veut | vuh | He/she wants |
| nous | voulons | voo-lon | We want |
| vous | voulez | voo-lay | You want (formal/plural) |
| ils/elles | veulent | vuhl | They want |
- “Je veux apprendre le français.” → I want to learn French.
- “Tu veux manger maintenant?” → Do you want to eat now?
- “Ils veulent partir tôt.” → They want to leave early.
The Polite Form: JE VOUDRAIS
In a shop, restaurant, or any request, use ‘je voudrais’ (I would like) instead of ‘je veux’ — it sounds far more polite:
- “Je voudrais un café, s’il vous plaît.” → I would like a coffee, please.
- “Je voudrais réserver une table.” → I would like to book a table.
- “Nous voudrions deux billets.” → We would like two tickets.
POUVOIR (to be able to / can)
| Subject | Form | Pronunciation | English |
|---|---|---|---|
| je | peux | puh | I can |
| tu | peux | puh | You can (informal) |
| il/elle | peut | puh | He/she can |
| nous | pouvons | poo-von | We can |
| vous | pouvez | poo-vay | You can (formal/plural) |
| ils/elles | peuvent | puhv | They can |
- “Je peux vous aider?” → Can I help you?
- “Tu peux venir demain?” → Can you come tomorrow?
- “Vous pouvez répéter, s’il vous plaît?” → Can you repeat, please?
DEVOIR (to have to / must)
| Subject | Form | Pronunciation | English |
|---|---|---|---|
| je | dois | dwah | I must |
| tu | dois | dwah | You must (informal) |
| il/elle | doit | dwah | He/she must |
| nous | devons | duh-von | We must |
| vous | devez | duh-vay | You must (formal/plural) |
| ils/elles | doivent | dwahv | They must |
- “Je dois partir maintenant.” → I must leave now.
- “Tu dois étudier ce soir.” → You have to study tonight.
- “Nous devons finir le projet.” → We have to finish the project.
Note! A shared pattern: All three verbs’ je/tu/il/elle and ils/elles forms belong to the same group (stem + eu/ei sound), while nous/vous fall back to a stem closer to the infinitive (voul-, pouv-, dev-). Spot this pattern and all three become much easier to remember at once.
Real Examples
1. In a Shop or Restaurant
- “Je voudrais un croissant, s’il vous plaît.” → I would like a croissant, please.
- “Est-ce que je peux payer par carte?” → Can I pay by card?
- “Vous devez attendre cinq minutes.” → You must wait five minutes.
2. Requests and Permission
- “Tu peux fermer la porte?” → Can you close the door?
- “Est-ce que je peux poser une question?” → May I ask a question?
- “Nous voulons visiter le musée.” → We want to visit the museum.
3. Expressing Obligation
- “Je dois aller chez le médecin.” → I have to go to the doctor.
- “Vous devez remplir ce formulaire.” → You must fill in this form.
- “Ils doivent partir avant midi.” → They must leave before noon.
Conjugation Practice — For Mastery
Exercise: Complete the Sentences
- “Je _____ (vouloir) apprendre le français.” → Je veux apprendre le français.
- “Tu _____ (pouvoir) m’aider?” → Tu peux m’aider?
- “Nous _____ (devoir) partir tôt.” → Nous devons partir tôt.
- “Vous _____ (vouloir) un café?” → Vous voulez un café?
- “Elles _____ (pouvoir) venir ce soir.” → Elles peuvent venir ce soir.
- “Il _____ (devoir) finir son travail.” → Il doit finir son travail.
Exercise: Make a Polite Request
Make “Je veux un thé.” more polite →
- Answer: “Je voudrais un thé, s’il vous plaît.”
Common Mistakes and Fixes
| ❌ Wrong | ✓ Right | Explanation |
|---|---|---|
| Je veut | Je veux | je takes ‘veux’ (x); ‘veut’ is only for il/elle |
| Nous voulez | Nous voulons | nous takes the -ons ending, not the vous -ez |
| Je veux manger je vais | Je veux manger | Only an infinitive follows a modal verb, never a second conjugated verb |
| Je veux un café (in a shop) | Je voudrais un café | In a formal situation, ‘voudrais’ is more polite |
Moving Forward
Today’s takeaway: Learning vouloir, pouvoir, devoir lets you express requests, permission, and obligation — all three appear constantly in TEF/TCF Expression Orale. Next, we’ll learn:
- Question formation (est-ce que, inversion, qui/que/où/quand)
- Imperative (commands: Viens! Faites attention!)
Your challenge: Every day, build 5 sentences with ‘je voudrais’ — it’s the most commonly used polite form and comes in handy in everyday conversation.
FAQ
What's the difference between 'Je veux' and 'Je voudrais'?
'Je veux' (I want) is direct and sounds a bit demanding. 'Je voudrais' (I would like) is the conditional form and much more polite — use 'je voudrais' in shops, restaurants, and any formal situation. TEF/TCF Expression Orale expects this too.
What's the difference between 'pouvoir' and 'savoir'? They both seem to mean 'to be able to'.
'Pouvoir' = permission or capability given the circumstances (Je peux sortir? = Can I go out? — permission). 'Savoir' = a learned skill (Je sais nager = I know how to swim — skill). This lesson covers only pouvoir; savoir comes in a separate lesson.
Why does 'devoir' have two meanings?
'Devoir + infinitive' = obligation (Je dois partir = I must leave). 'Devoir' is also used as a noun meaning 'homework' (mes devoirs = my homework) — these are two separate uses, and this lesson only covers the first (verb) use.
Why are these three called 'modal verbs'?
Because they don't describe an action on their own — they pair with another infinitive verb to describe the 'mode' of that action (desire, ability, necessity): Je veux partir (want), Je peux partir (can), Je dois partir (must) — all three pair with 'partir' but express a different mode.