I know that the order of the words has changed to form an interrogative sentence, and I comprehend that a means "has" and il/elle means "he/she", but what is the meaning of -t-, and from where it has arrived into the question? For example, the interrogative form of "Tu as douze ans." is "Quel âge as-tu ?". I don't have any problem here, but in the sentence "Elle/il a onze ans.", one can't see any -t-, which one sees in the interrogative form of the sentence.

  • 4
    Does this answer your question? Quand écrire ce « -t- » sorti des méandres de la phonétique?
    – None
    Commented Apr 5, 2020 at 7:36
  • Note also that you may find here and there some people witing it erroneously "Quel âge a t'il". These people probably never realised apostrophe is there to replace a removed letter...
    – Laurent S.
    Commented Apr 5, 2020 at 7:40
  • Thank you Mr. or Ms. None for trying to help me, but I'm still a beginner, so I can't understand that question and its answers now.
    – user24121
    Commented Apr 5, 2020 at 21:43
  • Thank you Mr. Laurent S. Yes, I've seen some people write such words that way.
    – user24121
    Commented Apr 5, 2020 at 21:45

3 Answers 3


It has no meaning. It occurs for the sound only, or as the French say, des raisons euphoniques.

Specifically, it's a species of liaison. Liaison is when the phonological environment of a syllable with no onset is created between two closely linked words, such as subject and verb. A consonant then fills the onset of that syllable.

Sometimes, that consonant is already waiting at the end of a word, normally silent yet still present in the mental grammar.

Elle dort /ɛldɔʀ/ ← In the univerted form, the second word has a consonant /d/ in the onset

Dort-elle ? /dɔʀtɛl/ ← In the inverted form, the syllable /ɛl/ "borrows" its onset from dort

Other times, there is no consonant available. Yet liaison demands one, perhaps originally because of grammatical analogy, and so a consonant is inserted from thin air.

Elle va /ɛlva/

Va-t-elle ? /vatɛl/ ← There was no silent consonant at the end of the verb

Incidentally, this also explains what takes place in uninverted forms. You probably know that sometimes you seem to pronounce the last letter of on, nous, vous, ils, and elles :

Vous venez /vuvəne/ ← The last consonant of vous is silent because venez has an onset

Vous allez /vuzale/ ← The last consonant of vous is pronounced because allez has no onset

The other way for these words to link is for one of the vowels to disappear (elision):

Je sors /jəsɔʁ/

J'aime /jɛm/ ← The schwa /ə/ at the end of je has been elided

Oddly enough, in standard written French neither solution obtained for tu :

Tu pleures /typlœʁ/

Tu aimes /tm/ ← The sequence of two vowels between subject and verb is unexpected

But in informal French, at least in informal Canadian French, the vowel of tu is elided.

T'aimes /tɛm/

  • Thank you very much for your help, Mr. Luke Sawczak.
    – user24121
    Commented Apr 5, 2020 at 21:38
  • 1
    @Restezchezvous No, I mean that at whatever point in time these patterns became fixed, nevertheless they never obtained (5th sense here) for tu.
    – Luke Sawczak
    Commented Apr 6, 2020 at 0:26

A complement to the very extensive answer from Luke. This "t" is the remains (or the aborted birth) of an interrogative particle ("particule interrogative").

Here is the story, around 16th century in France, people started to add the pronoun after the verb in a question:

"Ton ami peut-il venir?" which is a natural variation of "Peut-il venir?"; you just specify who is the "il" to make it clearer.

This was mostly used in spoken French, not in the written form (and you can still hear such a phrase in modern French, but mostly in dialects).

Now after some years people started to add the "t" also after other verbs (I guess, because otherwise the "i" is not very audible and because spoken language are just more flexible)

So instead of "Ton ami mange il de la viande?" (which sounds horrible) you get "Ton ami mange-t-il de la viande?"

Now spoken language being what they are, the "l" fell off (mostly when the next word began with a consonnant). So

"Ton ami peut-i venir?" or "Ton ami mange-ti de la viande?"

This interrogative particle is still present in some French dialects (I heard it in Normandy, but probably some other dialects). It is still very much alive in Canadian French (where the "i" got changed into a "u") as in

"T'as-tu de la bière?" (the first "T" is a shortened version of "Tu" and the second is the interrogative particle).

Anyways, this is the origin of the "t" in "Il y a-t-il de la bière ici?" (or in Canadian French "Y a-tu d'la bière icitte?")

See here for some details (in French).

PS: "Ton ami peut-il venir?" is much more convenient to say than "Est-ce que ton ami peut venir?"... and besides, what the hell are this "ce" and this "que" in "Est-ce que" ;o)

  • Thank you Mr. or Ms. ARG, for your response. To be honest, I'm still a beginner; so I'm sorry that your historical POV is somehow difficult for me to understand now; although I love both french and historical linguistics, so I hope someday I can speak and understand this very beautiful language like you and Mr. Luke.
    – user24121
    Commented Apr 5, 2020 at 21:41
  • And I forgot to add that I don't know why, but I love to ask questions that way "Est-ce que --- ?" (Maybe because I'm studying french with Rosetta Stone, and it's the first method to ask questions which a beginner learns by that software). It seems somehow antique and classique to me, although I don't know exactly since when frenchmen ask questions that way. That is somehow like the way our ancestors in Iran ask questions in Persian language, about 700-800 years ago! :-))
    – user24121
    Commented Apr 5, 2020 at 21:50
  • 1
    Sorry if my historical comment was unclear! I was just trying to make a transition: you start with a question "Peut-il venir?" (litteratlly "Can he come?"). This is a perfectly normal way to ask a question in French since eons. But the "il" may be vague, so people started to go to "Ton ami peut-il venir?" which is more precise (and also "t" is pronouced there, it's a liaison) which word for word translates as "Your friend, can he come?" [I added the ","; otherwise would sound weird]. This "t" sound then started to gain a life of its own [mostly in dialects] and got eventually accepted.
    – ARG
    Commented Apr 6, 2020 at 16:15
  • 1
    And yes "Est-ce que..." is a nice way to ask questions (but in dialects people like to be more familiar, which is why some alternatives got traction [I'm guessing]). I hope you will enjoy learning French (and then I'm sure you'll then be someday able to speak very well)!
    – ARG
    Commented Apr 6, 2020 at 16:18
  • Thanks again for your helps :-)
    – user24121
    Commented Apr 6, 2020 at 21:50

It is only for sound reasons, if we say "quel âge a il" it will be so hard to pronounce it, so they add the "t".

  • Thank you Ms. Rania.
    – user24121
    Commented Apr 6, 2020 at 21:51

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