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Lesson 1 of 5Future, Conditional and Subjunctive
Unit 3 · Lesson 1 of 5

Future and Conditional: Same Stem, Different Endings

A recap of the futur proche and the futur simple from Grade 9, then the Grade 10 layer: the conditionnel présent as a full tense, built on exactly the same stem as the futur with imparfait endings, plus every irregular and spelling-change stem you need.

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Key things to remember

  1. 1Futur and conditionnel share one stem: the infinitive (parler-, finir-), the infinitive minus final e for -re verbs (vendr-), or an irregular stem. The stem always ends in r.
  2. 2Futur endings: -ai, -as, -a, -ons, -ez, -ont (from avoir). Conditionnel endings: -ais, -ais, -ait, -ions, -iez, -aient (the imparfait endings).
  3. 3Irregular stems: ser-, aur-, ir-, fer-, viendr-, tiendr-, verr-, enverr-, pourr-, courr-, mourr-, voudr-, saur-, devr-, recevr-, faudr-, pleuvr-.
  4. 4After quand, lorsque, dès que with a future meaning, use the futur in both clauses: Quand j'aurai 16 ans, je travaillerai.
  5. 5would meaning used to is the imparfait, not the conditionnel: Chaque été, j'allais au lac.

In Grade 9 you learned two ways to talk about the future. The futur proche (aller + infinitive) covers plans that are close or certain: Je vais travailler samedi (I'm going to work on Saturday). The futur simple is one word: Je travaillerai cet été (I will work this summer). You also met si + présent → futur (S'il fait beau, nous irons à la plage), and you used je voudrais (I would like) as a polite set phrase without seeing it as a tense. Grade 10 opens that phrase up. Voudrais is one form of a full tense, the conditionnel présent — the French would. You need it to imagine (I would live in Montréal), to give advice (you should), to be polite (could you…?) and to report what someone said they would do. The good news: if you can form the futur, you already know 90 percent of the conditionnel, because both tenses use the same stem. Only the endings change.

PersonFutur simple: parlerConditionnel: parlerFutur: finirConditionnel: finirFutur: vendreConditionnel: vendre
je / j'parleraiparleraisfiniraifiniraisvendraivendrais
tuparlerasparleraisfinirasfiniraisvendrasvendrais
il / elle / onparleraparleraitfinirafiniraitvendravendrait
nousparleronsparlerionsfinironsfinirionsvendronsvendrions
vousparlerezparleriezfinirezfiniriezvendrezvendriez
ils / ellesparlerontparleraientfinirontfiniraientvendrontvendraient
The stem is the whole infinitive for regular -er and -ir verbs (parler-, finir-); -re verbs drop the final e (vendr-). Every futur and conditionnel stem ends in r, so if you cannot hear an r before the ending, it is not the futur or the conditionnel.

Where the endings come from

Two sets of endings you already know
Futur endings are the present tense of avoir, with av- dropped from nous and vous: ai, as, a, ons, ez, ont (compare j'ai, tu as, il a, nous avons, vous avez, ils ont). Conditionnel endings are exactly the imparfait endings: ais, ais, ait, ions, iez, aient (compare je parlais). So the conditionnel is a hybrid: the stem of the future plus the endings of the past. That is a good way to remember its meaning too — it looks forward from an imagined or reported point of view: I would speak.
InfinitiveIrregular stemFutur (je)Conditionnel (je)English
êtreser-je seraije seraisI will be / I would be
avoiraur-j'auraij'auraisI will have / I would have
allerir-j'iraij'iraisI will go / I would go
fairefer-je feraije feraisI will do / I would do
venir (devenir, revenir)viendr-je viendraije viendraisI will come / I would come
tenirtiendr-je tiendraije tiendraisI will hold / I would hold
voirverr-je verraije verraisI will see / I would see
envoyerenverr-j'enverraij'enverraisI will send / I would send
pouvoirpourr-je pourraije pourraisI will be able / I could
courircourr-je courraije courraisI will run / I would run
mourirmourr-je mourraije mourraisI will die / I would die
vouloirvoudr-je voudraije voudraisI will want / I would like
savoirsaur-je sauraije sauraisI will know / I would know
devoirdevr-je devraije devraisI will have to / I should
recevoirrecevr-je recevraije recevraisI will receive / I would receive
falloir (il faut)faudr-il faudrail faudraitit will be necessary / it would be necessary
pleuvoir (il pleut)pleuvr-il pleuvrail pleuvraitit will rain / it would rain
Learn these stems once and you have them for both tenses. Watch the double r in pourr-, courr-, mourr-, verr- and enverr-: in careful speech the double r of je courrais is held a little longer, which keeps it apart from the imparfait je courais. Verbs built on a base verb share its stem: devenir and revenir follow venir (je deviendrai), while comprendre and apprendre are regular like prendre (je comprendrai).
Futur and conditionnel: same stem, different endingsSTEM = the infinitiveparler- finir- vendr- (drop the e)+ futur endings+ conditionnel endingsFutur simple = willendings look like avoir: ai, as, a, ontjeparleraituparlerasil / elleparleranousparleronsvousparlerezils / ellesparlerontI will speak(je parlerai)Conditionnel = wouldendings = the imparfait endingsjeparleraistuparleraisil / elleparleraitnousparlerionsvousparleriezils / ellesparleraientI would speak(je parlerais)Irregular stems work for both tenses (every stem ends in r)êtreser-avoiraur-allerir-fairefer-venirviendr-voirverr-pouvoirpourr-vouloirvoudr-savoirsaur-devoirdevr-envoyerenverr-falloirfaudr-Trap: one letter apartJe serai là demain.I will be there tomorrow. (futur)Je serais content si tu venais.I would be happy if you came. (conditionnel)Not sure which one you hear? Try another person: tu seras / tu serais, nous serons / nous serions.
Fig 1One stem, two endings: the futur and the conditionnel share the infinitive or irregular stem; only the endings change, and the conditionnel borrows the imparfait endings.

Spelling-change verbs keep their change

Verb typeExampleFuturConditionnelWhy
e → èacheter (to buy), lever, promenerj'achèteraij'achèteraisthe next syllable has a silent e (a-chè-te-rai), so the e before it opens to è, just as in j'achète
double consonantappeler (to call), jeter (to throw)j'appellerai, je jetteraij'appellerais, je jetteraissame reason, solved by doubling the consonant, as in j'appelle
-yerpayer (to pay), essayer, nettoyerje paierai, je nettoieraije paierais, je nettoieraisy becomes i before a silent e; with payer and essayer the y is also allowed (je payerai)
é stays épréférer (to prefer), espérerje préférerai, j'espéreraije préférerais, j'espéreraisthe infinitive is kept whole; the newer spelling je préfèrerai is also accepted
Verbs like manger and commencer need no change at all in these tenses: je mangerai, je commencerai, because the ending never puts o or a right after the g or c.
Serai or serais? Check with tu or nous
je serai (I will be) and je serais (I would be) sound almost the same in everyday speech, and in writing the single letter s changes the meaning. When you are not sure which one you need, switch the subject in your head: tu seras or tu serais? nous serons or nous serions? Those pairs sound clearly different, so the right tense jumps out. Then go back to je and write the matching ending: futur -ai, conditionnel -ais.
AFutur simple: will
  • Je travaillerai au camp cet été. — I will work at the camp this summer.
  • Nous irons à Moncton en juillet. — We will go to Moncton in July.
  • Il pleuvra demain. — It will rain tomorrow.
  • Quand j'aurai 16 ans, je pourrai conduire. — When I am 16, I will be able to drive.
BConditionnel présent: would
  • Je travaillerais au camp, mais je n'ai pas de voiture. — I would work at the camp, but I don't have a car.
  • Nous irions à Moncton avec plaisir. — We would gladly go to Moncton.
  • Pourriez-vous m'aider ? — Could you help me?
  • Tu devrais dormir plus. — You should sleep more.
Quand + futur: French is more logical than English
English says When I am 16, I will… with a present tense, even though the time is in the future. French uses the futur in both halves: Quand j'aurai 16 ans, je pourrai conduire. The same goes for lorsque (when) and dès que (as soon as): Dès que tu arriveras, on mangera. (As soon as you arrive, we'll eat.) This is one of the clearest Grade 10 upgrades over a word-for-word translation. The key word that does not work this way is si (if): Si tu arrives tôt, on mangera — never a futur after si. You will see why in the lesson on si clauses.
Not every would is a conditionnel
English also uses would for a past habit: When I was little, I would go to the lake every summer. That would means used to, so French uses the imparfait: Quand j'étais petit, j'allais au lac chaque été. Ask yourself: is this an imagined or polite would, or a repeated past action? Only the first one is the conditionnel.
Loading interactive…
Conjugate verbs in the futur simple and the conditionnel présent and watch the shared stem stay fixed while the endings change.
In context: a text message about summer plans
Salut Noah ! J'ai enfin trouvé un emploi d'été : je travaillerai à la piscine municipale de Sudbury en juillet et en août. Je commencerai le 2 juillet. Quand j'aurai ma première paie, j'achèterai un nouveau vélo. Et toi ? Tu pourrais demander au camp de jour, ils cherchent encore des moniteurs. Ce serait génial de travailler dans le même quartier ! On pourrait prendre l'autobus ensemble le matin. Je t'enverrai le lien ce soir. À plus !

Translation: Hi Noah! I finally found a summer job: I will work at the Sudbury municipal pool in July and August. I'll start on July 2. When I get my first paycheque, I'll buy a new bike. What about you? You could ask at the day camp — they're still looking for counsellors. It would be great to work in the same neighbourhood! We could take the bus together in the morning. I'll send you the link tonight. Talk soon! The facts about the job (travaillerai, commencerai, enverrai) are in the futur. The suggestions and the imagined situation (pourrais, serait, pourrait) are in the conditionnel. Notice quand j'aurai ma première paie: the futur after quand, where English uses a present.

Worked examples

Reveal one step at a time and try to beat it to the next line.

Example 1
Translate: We will finish the project on Friday.
Example 2
Translate, using vous: Would you go to Moncton with us?
Example 3
Translate: When I am 18, I will work in a hospital.
Example 4
Translate: When I was a child, I would play hockey every Saturday.

Where marks get lost

  • Building the futur on the wrong stem: je allerai, j'avoirai, je pouvoirai. These verbs have irregular stems: j'irai, j'aurai, je pourrai.
  • Keeping the e of an -re verb: je vendrerai, je prenderai. Drop the final e and add the ending: je vendrai, je prendrai.
  • Mixing the two sets of endings: je parlerait, nous parlerions demain (meaning we will speak). Futur nous parlerons; conditionnel je parlerais.
  • Using the present after quand about the future: Quand je suis grand, je serai médecin. French says Quand je serai grand, je serai médecin.
  • Translating every would with the conditionnel: Quand j'étais petit, j'irais au parc chaque jour. A past habit takes the imparfait: j'allais au parc chaque jour.

Flashcards 9

Futur endings
Conditionnel endings
The shared stem for -re verbs
être, avoir, aller, faire — stems
+ 5 more

Practice

1
Write the futur simple of aller for nous.
2
Write the conditionnel présent of pouvoir for vous.
3
Write the futur simple of vendre for ils.
4
Write the conditionnel présent of être for je.
5
Which form is the conditionnel of acheter for elle?
6
Choose the correct translation: When she arrives in Toronto, she will call us.
7
Which sentence needs the imparfait rather than the conditionnel for would?
8
Match each infinitive to its futur / conditionnel stem.
faire
voir
savoir
venir
envoyer
devoir
9
Write the futur simple of payer for je (give the form with i).
10
Put the steps for forming the conditionnel of any verb in order.
  1. 1Find the futur stem: infinitive, infinitive minus e, or irregular stem
  2. 2Add the imparfait endings: -ais, -ais, -ait, -ions, -iez, -aient
  3. 3Check that the stem ends in r
  4. 4Decide that the meaning is an imagined, polite or advising would

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