Québec interrogative particle -tu
Summary
In informal Québec (and broader Canadian and Laurentian) French, a yes/no question can be marked by attaching the particle -tu to the verb, as in Tu viens-tu? or C'est-tu loin?; this -tu is a question marker derived from the old inversion ending, not the pronoun tu, and works with any subject.
Explanation
One of the most distinctive syntactic features of colloquial Québec French is an interrogative particle -tu that turns a statement into a yes/no question. Instead of using est-ce que or subject-verb inversion, the speaker keeps ordinary statement word order and adds -tu immediately after the conjugated verb: Tu viens-tu? (Are you coming?), Ça marche-tu? (Does it work?), C'est-tu loin? (Is it far?). The result asks a yes/no question while leaving the rest of the clause in its declarative shape, which is why the same string can look like a statement with something tacked on.
The crucial point for learners is that this -tu is not the second-person pronoun tu. It is a grammatical question marker, and it appears regardless of the subject. With a first-person plural subject one says On peut-tu partir? (Can we leave?); with a third-person subject, Le magasin est-tu ouvert? (Is the store open?); with an impersonal il, Y mouille-tu? (Is it raining?, in very colloquial speech). The clearest proof that -tu is not the pronoun is that it attaches even when the subject is je or ce: J'ai-tu le temps? (Do I have time?) and C'est-tu correct? (Is that okay?) both contain -tu with no second-person meaning at all.
Historically, the particle is generally analyzed as a development of the inverted interrogative ending found in standard French questions such as vient-il? (is he coming?) and a-t-il? (does he have?). In those forms the sequence around the verb ends in a -t- followed by the pronoun, and the final consonant of the third-person inversion was reinterpreted and generalized. Over time this reanalyzed element detached from any particular person and became a fixed, invariable yes/no question marker that speakers add to the verb, written -tu in popular spelling because that is how it sounds. This origin explains why the marker patterns like the tail of an inversion even though it no longer agrees with anything.
Phonologically and in spelling, the particle is usually written -tu and pronounced accordingly, though in rapid speech it can reduce. It attaches to the verb (or to the auxiliary in a compound tense), so the perfect is formed as Tu l'as-tu vu? (Did you see it?), with -tu following the auxiliary as and the past participle coming after. With est-ce constructions and with the second-person pronoun present, sequences like Tu, tu viens-tu? can arise in emphatic speech, where a fronted tu for emphasis is followed later by the particle, again showing the two are independent elements.
The construction belongs firmly to informal, spoken register. It is pervasive and entirely natural in everyday conversation across Québec and in related varieties, and using it is not an error within that register; it is simply how ordinary spoken questions are often built. It is, however, absent from formal writing, news copy, official documents, and careful or prepared speech, where the standard options take over: est-ce que tu viens?, viens-tu? with genuine inversion, or simply a statement with rising intonation, Tu viens? Learners should therefore treat -tu as something to recognize confidently and, if they choose to use it, to confine to relaxed conversation.
It is worth distinguishing the particle from the homophonous true inversion form viens-tu?, which in standard French is the second-person question are you coming?. In that standard form, tu is the subject pronoun and the verb precedes it by inversion. In the Québec particle construction the subject is normally already expressed before the verb (Tu viens-tu?), so the -tu is clearly extra, a separate marker rather than the subject. When the subject pronoun happens to be second person, the two analyses can look superficially similar, but the behaviour with je, on, ce, and third-person subjects removes any ambiguity about what -tu is doing.
The particle marks yes/no (polar) questions specifically; it is not used to form information questions on its own. A wh-question such as where are you going? is built with the usual question words and strategies (Tu vas où?, Où est-ce que tu vas?), not with -tu. It can, however, co-occur with the general informal flavour of Québec speech, alongside features like the reinforced pronouns nous autres and vous autres or sentence-final là, all of which cluster in the same casual register. These features are treated together in the broader survey of Québec grammatical traits.
For the learner, the practical takeaways are simple. First, when you hear -tu after a verb in Québec, parse it as does/is/can …?, a yes/no question, and do not read it as the word you. Second, identify the real subject elsewhere in the clause. Third, keep the construction in the spoken, informal box: understand it everywhere, produce it only where relaxed Québec speech is appropriate, and switch to est-ce que, inversion, or intonation questions in any formal context. Used with that awareness, -tu is a reliable and authentic marker of everyday Québec French.
Examples
Tu viens-tu avec nous autres à soir? — Are you coming with us tonight? (The -tu after viens marks the yes/no question; nous autres is the Québec reinforced form of nous, and à soir is informal for ce soir.)
C'est-tu correct si j'arrive un peu plus tard? — Is it okay if I arrive a bit later? (-tu attaches to c'est even though the subject is ce, proving it is a particle, not the pronoun tu.)
On peut-tu commencer tout de suite? — Can we start right away? (The subject is on (we), yet the marker is still -tu; in France French this would be On peut commencer? or Est-ce qu'on peut commencer?)
J'ai-tu le temps d'aller au dépanneur avant? — Do I have time to go to the corner store first? (Here -tu follows a first-person je, which shows it carries no second-person meaning.)
Ça te tente-tu d'aller magasiner demain? — Do you feel like going shopping tomorrow? (The particle -tu attaches to the verb tente; ça te tente means do you feel like, a common Québec turn of phrase.)
Le bus est-tu déjà passé? — Has the bus already gone by? (Third-person subject le bus with the -tu particle; the standard equivalents are Le bus est-il déjà passé? or Est-ce que le bus est déjà passé?)
Tu l'as-tu vu, le nouveau film? — Have you seen it, the new movie? (In a compound tense the particle follows the auxiliary (as-tu) and the past participle vu comes after; le nouveau film is added as a right-dislocated topic.)
Y fait-tu assez frette pour barrer le cadenas? — Is it cold enough for the padlock to freeze up? (With impersonal y (= il) and -tu; frette is a very colloquial Québec pronunciation of froid (cold).)
Common mistakes
Vous venez-tu avec nous, madame ?
Venez-vous avec nous, madame ?
The -tu question particle is a marker of very informal, casual spoken Québécois, used freely with any subject (Tu viens-tu ?, C'est-tu loin ?) — it is not literally tied to the pronoun tu. The mistake here is one of register: pairing this informal particle with the polite vous and the respectful address madame is jarring. In a polite or formal exchange, use plain inversion or est-ce que instead: Venez-vous avec nous, madame ?
Prerequisites
Related rules
quebeccanadian-frenchquestionssyntaxinterrogation