Is inversion more formal than est-ce que?

Yes. The ladder runs from intonation alone in casual speech, through est-ce que as the neutral option, to inversion in writing and in polite exchanges. Viens-tu ? is never wrong, but among friends it sounds noticeably careful.

Why is there a t in a-t-il and va-t-elle?

To keep two vowels apart. When the verb ends in a vowel and the pronoun is il, elle, or on, French inserts -t- purely for pronunciation: a-t-il, parle-t-on, ira-t-elle. It never appears after a consonant, so est-il and ont-ils have no extra t.

Can I invert a noun subject?

Not directly in a question. Either echo it with a pronoun — ton frère est-il là ? — or put the noun after the verb when a question word makes the meaning clear: où va ce bus ? After a quotation, though, a noun subject inverts freely: dit sa sœur.

Why can't I say aime-je?

Because inversion with je survives only in a few short, high-frequency verbs: puis-je, ai-je, suis-je, dois-je, sais-je, vais-je. For everything else French uses est-ce que, so est-ce que j'aime rather than aime-je.

French grammar · Intermediate

French Inversion: Asking Questions by Swapping the Verb and the Subject

Written by Camille Laurent, Lead French Curriculum Editor · Reviewed May 2026

Inversion means putting the conjugated verb in front of its subject pronoun and joining them with a hyphen: parlez-vous, a-t-il, viendra-t-elle. It is the formal way of asking a question in French, and it also appears outside questions — after a quotation, and after adverbs like peut-être and à peine.

Parlez-vous français ?

Do you speak French?

What it is

French has three ways of asking a yes-or-no question, and they form a register ladder. Intonation alone is the most casual, est-ce que is neutral, and inversion is the most formal. Inversion is also the oldest: before est-ce que existed, swapping the verb and the subject was the only way to mark a question.

Vous avez le temps. → Avez-vous le temps ? — You have time. → Do you have time?

How to spot it

Look for a verb followed by a hyphen and a subject pronoun. That hyphen is the visible sign of inversion, and it appears nowhere else in French except with imperatives and their object pronouns.

As-tu fini tes devoirs ? — Have you finished your homework?
Où allez-vous cet été ? — Where are you going this summer?
Peut-on entrer ? — May we come in?
« J'arrive », dit-elle. — "I'm coming," she said.

Only subject pronouns can be inverted. A noun subject either stays in front of the verb or is echoed by a pronoun after it.

Inversion Quick Reference

The three question forms, from casual to formal

Form	Example	Register
Intonation only	Tu viens ?	casual speech
Est-ce que	Est-ce que tu viens ?	neutral, spoken and written
Inversion	Viens-tu ?	formal, written, careful speech
Question word + inversion	Quand partez-vous ?	formal
Question word + est-ce que	Quand est-ce que vous partez ?	neutral
Noun subject echoed	Ton frère est-il là ?	formal
Inversion after a quotation	« Non », répondit-il.	narrative writing
Inversion after peut-être	Peut-être a-t-il oublié.	formal writing

Common Inversion Examples in French

Inversion in each of the places it appears:

Yes-or-No Questions

Avez-vous réservé une table ?: Have you booked a table?
Voulez-vous laisser un message ?: Would you like to leave a message?
Est-elle déjà rentrée ?: Has she come home already?
Puis-je vous aider ?: May I help you?

This is the register of shop assistants, receptionists, and written correspondence.

After a Question Word

Comment allez-vous ?: How are you?
Pourquoi ne répond-il pas ?: Why isn't he answering?
Combien coûtent ces places ?: How much do these seats cost?
Que veux-tu dire exactement ?: What exactly do you mean?

The question word comes first, then the inverted verb and subject. Que in particular almost always requires inversion.

With a Noun Subject

Ton frère est-il au courant ?: Does your brother know?
Le train arrive-t-il à l'heure ?: Is the train arriving on time?
Où va ce bus ?: Where does this bus go?
Quand part le prochain vol ?: When does the next flight leave?

A noun subject is either echoed by a pronoun after the verb, or simply follows the verb when a question word makes the sense clear.

Outside Questions

« Je ne comprends pas », murmura-t-il.: "I don't understand," he murmured.
Peut-être avez-vous raison.: Perhaps you're right.
À peine était-elle sortie que le téléphone sonna.: She had barely left when the phone rang.
Sans doute a-t-il ses raisons.: No doubt he has his reasons.

These are statements, not questions. The inversion here is a matter of style and, after some adverbs, obligatory.

How Inversion Works

The mechanism is simple; the restrictions are what take practice.

Only the Conjugated Verb Moves

In a compound tense it is the auxiliary that swaps places with the pronoun, and the past participle stays where it was. As-tu vu, êtes-vous partis, aurait-il compris.

Avez-vous vu le film ?

Have you seen the film?

Invert the auxiliary, leave the participle.

Only Pronouns Invert

Je, tu, il, elle, on, nous, vous, ils, elles, and ce can move behind the verb. A noun cannot, so a sentence with a noun subject either repeats it as a pronoun — Marie est-elle là ? — or uses est-ce que.

Vos parents sont-ils prévenus ?

Have your parents been told?

Noun subjects need a pronoun to invert with.

A T Is Inserted Between Two Vowels

When the verb ends in a vowel and the pronoun is il, elle, or on, French inserts -t- to keep the two apart: a-t-il, va-t-elle, parle-t-on. This t is purely phonetic and has no meaning.

Y a-t-il un problème ?

Is there a problem?

Vowel + il/elle/on → add -t-.

It Sits at the Top of the Register Ladder

Inversion is correct in every situation but sounds formal in casual conversation, where est-ce que or plain intonation is expected. In writing, and in any exchange using vous, it is the natural choice.

Souhaitez-vous être rappelé ?

Would you like to be called back?

Formal register, never wrong, sometimes stiff.

Je Resists Inversion

With je, inversion survives only in a handful of short verbs: puis-je, ai-je, suis-je, dois-je, sais-je, vais-je. Everything else uses est-ce que, so est-ce que je peux rather than peux-je.

Puis-je vous poser une question ?

May I ask you a question?

puis-je, ai-je, suis-je — otherwise est-ce que.

Common Mistakes with Inversion

Incorrect: Où va Marie-t-elle ? — Where is Marie going?

Correct: Où Marie va-t-elle ? — Where is Marie going?

The noun subject stays in front of the verb and is echoed by a pronoun after it. The pronoun cannot be attached to the noun, and the simpler où va Marie ? also works.

Incorrect: Est-ce que viens-tu avec nous ? — Are you coming with us?

Correct: Viens-tu avec nous ? — Are you coming with us?

Est-ce que and inversion are two alternative ways of marking a question. Using both marks it twice, and no French speaker would say it.

Incorrect: Peut-être il a oublié la réunion. — Perhaps he's forgotten the meeting.

Correct: Peut-être a-t-il oublié la réunion. — Perhaps he's forgotten the meeting.

Peut-être at the head of a clause requires either inversion or the addition of que. Peut-être qu'il a oublié is the version speech uses.

Incorrect: Peux-je vous demander quelque chose ? — May I ask you something?

Correct: Puis-je vous demander quelque chose ? — May I ask you something?

Pouvoir has a special inverted form with je: puis-je. The ordinary peux cannot be inverted, and outside this small set of verbs je takes est-ce que instead.

Inversion in Statements

Not every inversion is a question. Three constructions use it in ordinary declarative sentences, and two of them are compulsory.

After a quotation

When a narrative identifies who is speaking after the quoted words, the verb comes before the subject. This is called an incise, and it is obligatory in this position.

« Je ne viendrai pas », déclara-t-il.: "I won't come," he declared.
« Attends-moi », dit sa sœur.: "Wait for me," said his sister.
« Et alors ? » demanda-t-elle.: "So what?" she asked.

Unlike in questions, a noun subject can invert directly here: dit sa sœur, répondit le professeur.

After peut-être, sans doute, à peine, aussi

When these adverbs open the clause, formal French inverts the verb and subject. The alternative, in every register, is to add que and keep the ordinary order.

Peut-être a-t-elle changé d'avis.: Perhaps she has changed her mind.
Sans doute est-ce une erreur.: It is doubtless a mistake.
À peine avait-il parlé qu'on l'interrompit.: He had barely spoken when he was interrupted.
Aussi avons-nous décidé de reporter.: We therefore decided to postpone.

Peut-être qu'elle a changé d'avis says the same thing without inversion, and it is what speech prefers.

In wishes and set formulas

A few fixed expressions preserve an old inverted subjunctive, and they are learned as units.

Puisse-t-il réussir !: May he succeed!
Ainsi soit-il.: So be it.
Toujours est-il qu'il a réussi.: The fact remains that he succeeded.

These are not productive patterns: you cannot invent new ones, but you will meet these in writing.

Inversion FAQs

What is inversion in French?: It is the swapping of a conjugated verb and its subject pronoun, joined by a hyphen: parlez-vous, a-t-il, viendra-t-elle. It is the formal way of asking a question, and it also appears in statements after a quotation or after adverbs like peut-être.
Is inversion more formal than est-ce que?: Yes. The ladder runs from intonation alone in casual speech, through est-ce que as the neutral option, to inversion in writing and in polite exchanges. Viens-tu ? is never wrong, but among friends it sounds noticeably careful.
Why is there a t in a-t-il and va-t-elle?: To keep two vowels apart. When the verb ends in a vowel and the pronoun is il, elle, or on, French inserts -t- purely for pronunciation: a-t-il, parle-t-on, ira-t-elle. It never appears after a consonant, so est-il and ont-ils have no extra t.
Can I invert a noun subject?: Not directly in a question. Either echo it with a pronoun — ton frère est-il là ? — or put the noun after the verb when a question word makes the meaning clear: où va ce bus ? After a quotation, though, a noun subject inverts freely: dit sa sœur.
Why can't I say aime-je?: Because inversion with je survives only in a few short, high-frequency verbs: puis-je, ai-je, suis-je, dois-je, sais-je, vais-je. For everything else French uses est-ce que, so est-ce que j'aime rather than aime-je.