I should have listened to you. You could have warned me! We should have left earlier. I would have loved to be there. Regret and reproach are some of the most human things you say, and they are also some of the most delicate: the same idea can sound like an attack or like an apology depending on how you phrase it. In French, almost all of these sentences use one tense you now know, the conditionnel passé, combined with a handful of verbs: devoir, pouvoir, falloir, valoir mieux, aimer, vouloir, préférer. This lesson turns those combinations into a toolkit, shows why j'ai dû and j'aurais dû mean very different things, and gives you phrases for tactful feedback and for apologising and forgiving in a real conversation.
The regret and reproach toolkit
| Phrase | Meaning | Example | English |
|---|---|---|---|
| j'aurais dû + infinitif | I should have (but didn't) | J'aurais dû t'écouter. | I should have listened to you. |
| je n'aurais pas dû + infinitif | I shouldn't have (but did) | Je n'aurais pas dû dire ça. | I shouldn't have said that. |
| j'aurais pu + infinitif | I could have (but didn't) | J'aurais pu t'aider. | I could have helped you. |
| tu aurais pu + infinitif | you could have: a reproach | Tu aurais pu me prévenir ! | You could have warned me! |
| il aurait fallu + infinitif / que + subjonctif | it would have been necessary; we should have | Il aurait fallu réserver. / Il aurait fallu que tu me le dises. | We should have booked. / You should have told me. |
| il aurait mieux valu + infinitif | it would have been better | Il aurait mieux valu attendre. | It would have been better to wait. |
| j'aurais aimé / j'aurais voulu + infinitif | I would have liked / wanted | J'aurais tellement aimé être là. | I would so much have liked to be there. |
| j'aurais préféré que + subjonctif | I would have preferred | J'aurais préféré que tu me dises la vérité. | I would have preferred you to tell me the truth. |
What happened versus what didn't
| French | Tense | English | Did it happen? |
|---|---|---|---|
| J'ai dû partir. | passé composé | I had to leave. | yes, I left |
| Il a dû oublier. | passé composé | He must have forgotten. | probably (a guess about the past) |
| Je devais partir à midi. | imparfait | I was supposed to leave at noon. | not said: plans can change |
| J'aurais dû partir. | conditionnel passé | I should have left. | no, I stayed |
| J'ai pu finir. | passé composé | I managed to finish. / I was able to finish. | yes |
| Je n'ai pas pu venir. | passé composé | I couldn't come. (I was unable to.) | no, something stopped me |
| J'aurais pu venir. | conditionnel passé | I could have come. | no, but it was possible |
| Il aurait pu pleuvoir. | conditionnel passé | It could have rained (but it didn't). | no, a possibility that didn't happen |
Tactful feedback
- Ton introduction est trop longue. — Your introduction is too long.
- Tu as oublié tes sources. — You forgot your sources.
- Ce paragraphe est confus. — This paragraph is confusing.
- Tu as parlé trop vite. — You spoke too fast.
- Ton introduction aurait peut-être pu être plus courte. — Your introduction could perhaps have been shorter.
- Il aurait fallu citer tes sources. — Your sources should have been cited.
- Moi, j'aurais ajouté un exemple ici. — Personally, I would have added an example here.
- À ta place, j'aurais ralenti un peu. Ce serait encore plus clair. — In your place, I would have slowed down a bit. It would be even clearer.
The tactful versions do three things. They use the conditionnel to present the criticism as a possibility rather than a verdict; they add softeners such as peut-être (perhaps), un peu (a little) and moi, je (speaking for yourself); and they point toward a fix. When you give feedback on a classmate's presentation or a friend's cover letter, start with something that works (J'ai beaucoup aimé ton exemple sur…), then add one or two conditionnel suggestions.
Asking why, apologising and forgiving
| Phrase | Use | Example | English |
|---|---|---|---|
| Comment se fait-il que + subjonctif | How come…? (surprise, mild reproach) | Comment se fait-il que personne ne soit au courant ? | How come nobody knows about it? |
| À quoi bon + infinitif | What's the point of…? | À quoi bon regretter ? C'est fait. | What's the point of regretting? It's done. |
| D'où vient que… (formal) | Why is it that…? (recognise it in writing) | D'où vient que tant de gens ont peur de parler en public ? | Why is it that so many people are afraid of public speaking? |
| Je suis vraiment désolé(e). / Je m'excuse. | apologising | Je suis vraiment désolée, j'aurais dû t'écrire. | I'm really sorry, I should have written to you. |
| Ce n'est pas grave. / Ne t'en fais pas. | accepting an apology | Ne t'en fais pas, ça arrive à tout le monde. | Don't worry, it happens to everyone. |
| Je ne t'en veux pas. | I'm not angry at you | Je ne t'en veux pas, mais la prochaine fois, avertis-moi. | I don't hold it against you, but next time, let me know. |
- Jade : Tu n'es pas venue à mon spectacle hier soir… Tu aurais pu m'avertir !
- Inès : Je suis vraiment désolée. J'aurais dû t'écrire, mais mon téléphone était déchargé.
- Jade : Comment se fait-il que tu oublies toujours de charger ton téléphone ?
- Inès : Tu as raison. Il aurait fallu que je le charge avant de partir. Et j'aurais pu emprunter celui de mon frère…
- Jade : Bon. À quoi bon se fâcher ? C'est fait.
- Inès : J'aurais tellement aimé t'entendre chanter. La prochaine fois, je te promets que je serai au premier rang.
- Jade : D'accord. Je ne t'en veux pas.
Translation: Jade: You didn't come to my show last night… You could have let me know! Inès: I'm really sorry. I should have texted you, but my phone was dead. Jade: How come you always forget to charge your phone? Inès: You're right. I should have charged it before leaving. And I could have borrowed my brother's… Jade: Okay. What's the point of getting angry? It's done. Inès: I would so much have liked to hear you sing. Next time, I promise I'll be in the front row. Jade: All right. I'm not mad at you. Jade's reproach (Tu aurais pu m'avertir) and Inès's regrets (J'aurais dû, il aurait fallu que, j'aurais pu, j'aurais aimé) all use the conditionnel passé for things that did not happen. Comment se fait-il que takes the subjonctif (tu oublies). Avertir (to let know, to warn) is very common in Canada; prévenir means the same thing and is common everywhere.