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  5. "Oui, je dois manger et boire…

"Oui, je dois manger et boire."

Translation:Yes, I have to eat and drink.

March 16, 2013



For the curious:

je dois

tu dois

il doit

nous devons

vous devez

ils doivent


Thank you! I came to the comments to look for it. But what's the infinitive? Like: Parler- to speak. Manger- to eat.

What's the one for the ones you conjugated? Please reply :)


"dois" is conjugated, from the infinitive "devoir"


Devoir - (v) have to do smth. Devoir - (n) homework Coincidence? Think not.


so then what is the difference between il faut (i must ) and verb dois? so il faut vs il doit?


"Il faut" does not say who must/has to/needs to perform the action.

"Je dois" is an alternative to "Il me faut"

"Il doit" is an alternatie to "Il lui faut"




I answered the question, didn't I?


Haha, when in doubt, sitesurf.


Consider looking up on google "devoir conjugaison" and choose nouvelobs. Also you can buy a grammaire trajet


also note: 'les devoirs' can also be a noun, to refer to (literally: 'must-do's' ) one's moral obligation/responsibilities (things you should do for a friend, before you die, etc) or, specifically in the classroom, as homework. :)


I think 'duties' is a nice translation, in some cases (see 'devoirs du citoyen', for example)


This is very helpful, merci!


Oh thank you this is so helpful for this skill.


I was wondering falloir and devoir both apparently mean "to have to", so how do you know when to use either falloir or devoir in a sentence?


They are interchangeable, most of the time. But you have to be careful with the construction:

  • je dois manger
  • il me faut manger or il faut que je mange (impersonal construction with infinitive or subordinate clause with subjunctive)


I researched this: http://french.about.com/od/grammar/a/devoirfalloir.htm

From that I got the impression that falloir is to express absolute necessity like: If you don't want to die you have to breathe. Whereas devoir was more of an obligation, something you should or are supposed to do, it's more casual like: I could go to the movies with you but I have to study.

Is that right? Does it make sense to say they differ in the severity of their meaning?

Thanks in advance.


"Il faut" is very versatile, as "devoir" is, and we can complement it with adverbs to give it nuances:

  • il faut probablement que je mange = je dois probablement manger
  • il faut sans aucun doute que je mange = je dois sans aucun doute manger
  • il faut absolument que je mange = je dois absolument manger


I am confused. Is "il me faut manger" - it is necessary for me to eat. And "il faut me manger" - it is necessary to eat myself.


"me" is an indirect object, similar to "to me", not "me" as a direct object.

il faut me manger = someone needs to eat me / it is necessary to eat me.

it is necessary to eat myself = il faut que je me mange / il me faut me manger.


I am more proficient than my profile level, and from my experience you only really use falloir in the set phrase 'il faut (que)' where as devoir is more coloquial/common.


For your information, this is the list of the top 15 most frequent verbs in French:



Do you recommend learning all the possible conjugations for these 15 verbs? I ask as I have never made up a set of flashcards, however, if you think they would aid the great majority of conversation (and reading comprehension) I will set to it. I don't have an aversion to flashcards per se, I just didn't know where to begin ;D.

Cheers SS for any advice.


I am aware that French conjugations are frightening in the beginning, but you can group them to ease your learning.

As JJ says, start with the indicative present, then add more tenses when you feel comfortable with the present.

  • être and avoir are the absolute "musts" because you need them as auxiliaries as well for all the compound tenses.

  • trouver, donner and parler are regular and conjugated alike (1st group)

  • falloir only exists in 3rd person singular, so that's a lot of work saved (indicative: il faut, il faudra, il fallait, + the past participle "fallu" for the rest)

  • pouvoir and vouloir are very close.

  • very sadly, the others are seriously irregular.

When I learned Latin, I learnt all verbs as lists with all persons, tenses and moods, which was only a matter of memorization since the logic was very similar to the French conjugations'. But I also started to learn irregular English verbs at the same time and those were so much easier in comparison! Yet, I was 12 at the time and my brain was still fresh!


Merci to you both for your advice.


Hi Ripcurlgirl. I think that you are asking Sitesurf so please forgive my slight rudeness to butt in. I used flashcards when I home educated my children and they learnt really quickly. So just for the present tense of the verbs which Sitesurf has outlined above, I'd say go for it. However, as I assume you know, for all tenses there are around 47 conjugations multiplied by the 3 groups of verbs and you may have to clear the garage to have a place to store the lot. :)


why is "yes, I'll eat and drink" okay, but "yes, I will eat and drink" not okay?


Why is "i ought to eat and drink" wrong?


I ought to is generally translated to: "je devrais + inf" (conditional) or "je ferais mieux de + inf"


I'm guessing it's the same with " I should eat and drink"?


I should = je devrais, il faudrait que je (+ subjunctive)


can you give some examples?


In which language, Hyacinth?


Those both should technically be incorrect as "dois" does not translate to will eat/drink but must eat/drink. Saying will eat/drink will use the future tense conjugations which we haven't gotten to at this point.


Is there a difference between must and have to? Can I translate this as 'I must eat and drink"? English is not my native language so the nuance there is not always clear and it seems that the two could be used interchangeably depending on how hungry I am?


Both "must" and "have to" are used to express strong obligation. The difference between both is that usually "have to" means that some external circumstance makes the obligation necessary (e.g. I have to clean my house - you don't want to but your parents are coming to visit -> external motivation) and "must" is used when there are some internal/personal circumstances for it (e.g. I must clean my house - you just can't stand living in dirty house -> internal motivation)


As an English speaker I never knew that. I also that that 'ought' and 'must' should have been accepted.


I would definitely dispute what elaliv said if (s)he claims it is a rule, and even as a general trend it does vary from person to person... Yes, the trend is there. But really, "must" and "have to" mean more or less the same thing. Trying to memorize the situations in which you would use either would be a waste of time.


I largely agree with both of you, Zesty and Elaliv. Just one thing, though, Must can be a noun as in "This regulation is a Must". There, "have to" has to go as it always had to because it can never muster the must that Must has; has to have and would have to have as a noun which must has, has to and always will have to. This is a Must. (I must finish here now because I have to stop as one eventually must, ought and should.) (I bet you must read this, even though you don't have to.)


"Ought" and "should" are the conditional forms of "devoir". In the present indicative, we say "must" or "have to". For the conditional tense, we say "ought to" or "should".


Ought is more like "should"


Why the infinitive forms of mange and bois?


For the same reason as in English where "eat" is the infinitive form (you don't say "he must eats").

It is a common form for all types of verbs: je dois, je peux, je sais, je veux... (I must, I have to, I can, I know how to, I want to...)


In French, the second verb is always in its infinitive form: il peut nager (he can swim).


Thanks for this rule of thumb, very helpful.


As i know devoir means homework also


Why does the male voice pronounce 'oui' as 'oh-ee'


With a drawling voice, "oui" (or "we") indeed sounds as [u-ee].


Because, Galactic, there are accents and dialects. Confusing, I know; in England, in London or "Dahn Sarf" as we Cockneys say, Nowthen means pay attention but in the North it means "Hello." In the South we say "I'm going home" in Durham they say "Am gannin yam." This is a tiny island compared to France yet one may go not 30 miles and not understand a word that is spoken. There you go blossom, all "Hunky-Dory" or "Hooky-Dunch" as is said, depending on where one is in England.


So why does "boise" have an "e" at the end, when "I drink" is translated "Je bois"?


There must be some confusion here.

"Boise" comes from the verb "boiser" which means "to plant trees".

"I drink" translates to "je bois" and the full conjugation of the verb "boire" (infinitive form) in present is:

  • je bois, tu bois, il/elle/oon boit, nous buvons, vous buvez, ils/elles boivent.


the sentence read: Oui, je dois manger et boire. I wondered the same thing. I knew they were saying drink but I was confused why they used boire instead of bois.

, je



(to) eat eat got et




Je dois manger (infinitive) et boire (infinitive).

Think of it as:

I need/have [to eat] and [to drink]


Is it all verbs or only certain verbs that if followed by a second verb, that verb must be in the infinitive.


Only a few of them require an infinitive without any preposition: aimer/aimer mieux, aller, compter, croire, daigner, devoir, entendre, espérer, faire, falloir, (s')imaginer, laisser, oser, penser, pouvoir, prétendre, savoir, sembler, sentir, valoir mieux, venir, voir and vouloir.


And for the remaining verbs, are there just various rules or do you conjugate (the second verb) according to the pronoun


Only the first verb is conjugated.


Why is besoin de not acceptable?


"besoin de" means "need" J'ai besoin de.... means "I need...." so it's not the same meaning as "Je dois...." which means "I must..."


Thought Je dois means I want to


je dois = I must, I have to

je veux = I want


What is the reason to use "Je dois manger" instead of Je dois mange?


You cannot have 2 conjugated verbs one after the other. The second one has to be infinitive.


Well, with respect, isn't this sentence structured the other way round? Isn't here Duo translating Dois to I have (to) rather than Must? Surely here isn't Manger used because the sentence begins with "I have To Eat" (infinitive) and Manger translates to To Eat? So it begins "I Have To Eat (Manger) and Drink and therefore it is Boire that is the infinitive second verb? Sitesurf, I'm certainly not questioning your explanation of French grammar but it seems that both question and answer here are back to front?


The question OodStalcup asked yesterday was already answered above with more information:

A number of French verbs can be followed by an infinitive without any preposition: aimer/aimer mieux, aller, compter, croire, daigner, devoir, entendre, espérer, faire, falloir, (s')imaginer, laisser, oser, penser, pouvoir, prétendre, savoir, sembler, sentir, valoir mieux, venir, voir and vouloir.

This means that "je dois" (I must/I have to/I need to...) can be followed by "manger", "boire" or any other verb, in infinitive.

In this sense, those verbs work like your modals, but our infinitive single form corresponds to both your infinitives (with "to") and to your bare infinitives (without "to"), which makes comparisons a bit complex.


Right, got it. Thanks.


I appreciate the green owl's work but could you make for us another partiton for verbs , teach us the conjugations of each and every verb with its meaning, that would really be very helpful and will, without any inquiry raise your popularity. Thanks for reading- hoping you will put this in your mind :)


Well, John, There are 3 groups of verbs each conjugating differently and there are some 48 conjugations for each. That will require space 172,800 extra words multiplied by however many characters each word uses; say an average of at least 6=1,036,800. Duo do seem to leave the student to carry extra curricular studies on or from other sites or sources. If you go to Conjugation fr.com click on the link and when on site type in the infinitive and all conjugations will be displayed for over 1200 French verbs. When I don't know what the infinitive is I first go to Google Translate (good for pronunciation and finding infinitives but unreliable for sentences), I then type in the English infinitive "To Eat" for example and the French comes up Manger and that I then type into Conjugation fr.com. Works every time for me. This is an example of how Duo works with its community of users.


Does 'dois' also mean 'owe'?


It can, when followed by a noun to make sense: je te dois 5 euros = I owe you 5 euros


The arbitrary use of "yes" and "yeah" is confusing to say the least.


The term "yeah" is very informal in English. On Duolingo, "oui" will always be translated as "yes". The French "ouais" is translated as "yeah" (not used on Duo).


What is the better translation for "devoir"? "To have to" or "to need"


Context would tell, but here you don't have any. Therefore, "eating and drinking" being vital needs, "to need" looks like a perfect option here.


What is the difference between devoir and avoir? Do they both mean "to have" but in different contexts?


In English, "to have something" means to possess something; in French "avoir quelque chose" has the same meaning.

In English, "to have to do something" means to need to do something; in French "devoir faire quelque chose" has the same meaning.

So, "je dois manger et boire" can translate to "I must eat and drink" or "I have to eat and drink" or "I need to eat and drink", because the French verb "devoir" has a rather broad range of meanings, from absolute obligation to need.


Who on Earth has the gall and ignorance to mark any of our Sitesurf's excellent and informative posts down. OWN UP!


Dois according to duolingo can mean (I/you) have to or (I/you) have to pay. How do I know when dois refers to simply having to and when it refers to having to pay? Thank you


I'm not sure, but I think this might be the "owe" meaning of the word mentioned by Yusayrah24.


The spoken "oui" sounds weird for me. It's sounds like a very quick "ooh-yi" instead of the typical "wee"


Is (manger) in future tense? So far I learned, je mange, tu manges, vous mangez, il mange, nous mangeons, ils mangent, and I thought those were all present tense.


"manger" is the infinitive form, like "to eat".

What you have learned so far is how to conjugate the verb "manger" in present tense.

You will learn other tenses in the next lessons.


❤❤❤ I didn't have a word "drink"


Sam, please spell out for me in words what "❤❤❤" means. I am ignorant.


Je dois cannot mean I should?


"I should" = je devrais - conditional present.

"je dois" = I must, I have to, I need to - indicative present.


Mark Zuckerberg: "I too know what it is to be human."


"Je doir" but is it not " I must"?

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