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Réussir à or Réussir Un: Describe What You Managed to Do

Use réussir with nouns and infinitives to describe completed tasks, successful attempts, and progress in French, with a worked update and explained answers.

LexiFr Editorial Published 6 min read
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At the end of a workshop, “I succeeded” leaves an obvious question unanswered: at what? French gives you several ways to supply the missing information. Naming an exercise, describing an action you managed, and saying an event went well each put success into a different grammatical frame.

Quick answer

Use réussir à before an infinitive to say that someone manages to do something. Use réussir directly before a task or creation, such as an exercise or a cake, to say they do it successfully. An event can also be the subject. Choose the construction from what follows the verb, and distinguish an achieved result from an attempt still in progress.

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Name the task or describe the action

J’ai réussi l’exercice (I completed the exercise successfully) treats the exercise as a task with a satisfactory result. J’ai réussi à expliquer ma réponse (I managed to explain my answer) instead specifies an action. The second sentence may suggest that explaining was difficult; it does not tell us whether the original answer was correct.

What follows?ConstructionExample
A task or productréussir + nounElle a réussi son gâteau. (Her cake turned out well.)
An actionréussir à + infinitiveElle a réussi à décorer le gâteau. (She managed to decorate the cake.)
No complement neededréussirNotre spectacle a réussi. (Our show was a success.)
An area of achievementréussir dans + fieldIl réussit dans son nouveau métier. (He is doing well in his new occupation.)

The noun can have different determiners: l’exercice, mon dessin, cette recette. The title’s “réussir un” reminds you that a noun can follow directly; un is not compulsory.

Keep the infinitive after à

Once you have conjugated the first verb, leave the following action in its infinitive form: Nous réussissons à terminer à temps (We manage to finish on time). For the plural stem and endings, the guide to regular -ir verbs includes the relevant pattern.

The connector belongs to the governing verb. Compare J’essaie de réparer la chaise (I am trying to repair the chair) with Je réussis à réparer la chaise (I manage to repair the chair). Do not transfer de from the attempt construction into the achievement construction. Their English translations cannot reliably supply the French preposition.

With an object pronoun, place it beside the action it belongs to: J’ai réussi à la réparer (I managed to repair it). Here la refers to the chair, the object of repairing. The broader à and de guide helps identify similar verb-dependent patterns.

A result can be partial

J’ai réussi à ouvrir le fichier, mais pas à le modifier (I managed to open the file, but not to edit it) identifies one success and one unresolved difficulty. This is more informative than calling the entire task a success or failure. The second à keeps the relationship to the original verb clear.

Separate attempts, results, and repeated ability

J’ai essayé de joindre Camille (I tried to contact Camille) reports an attempt, without saying whether contact happened. J’ai réussi à joindre Camille (I managed to contact Camille) presents the contact as achieved. Do not use the latter merely because you made a substantial effort.

The present can describe what you currently manage or do repeatedly: Je réussis à suivre les explications quand le groupe parle lentement (I can follow the explanations when the group speaks slowly). The condition matters. Removing it would make the statement broader than the evidence given.

For a finished experience, the passé composé is often useful; the imparfait can provide background about earlier difficulties. Review passé composé versus imparfait when recounting several attempts.

Avoid treating réussir à as a replacement for every English “can.” Je peux venir jeudi (I can come on Thursday) expresses availability. Changing it to a success verb suggests that coming involves some obstacle to overcome. That may fit a difficult journey, but not a routine calendar confirmation.

Worked task: write a workshop progress update

Suppose you are learning to assemble a small cardboard model. You followed the diagram, completed the base, and attempted the roof. The roof still collapses. Your instructor needs to know where assistance would help, so give a concrete result followed by the unfinished part.

J’ai suivi le schéma et j’ai réussi à monter la base. J’ai essayé de fixer le toit, mais il tombe encore. Je n’ai pas encore réussi à faire tenir le toit. Pouvez-vous me montrer comment faire tenir le toit ? (I followed the diagram and managed to assemble the base. I tried to attach the roof, but it still falls down. I have not yet managed to make the roof stay in place. Can you show me how to make the roof stay in place?)

The first sentence reports following the diagram and completing the base, without claiming that no help was given. The next two distinguish the attempt to attach the roof from the result still not achieved. The final question asks for a demonstration of how to make the roof stay in place. Nothing in this report claims that the whole model is complete.

You could shorten this to J’ai réussi la première étape (I completed the first stage successfully) if the reader already knows what the stage involves.

Common mistakes and a memory tip

Avoid j’ai réussi de terminer. Before an infinitive, this verb calls for à. Avoid j’ai réussi à mon dessin when you mean that your drawing turned out well: the direct-object version is j’ai réussi mon dessin. A noun does not need an infinitive connector simply because English uses “at.”

For a memory tip, finish one of two prompts: “Which task?” or “Do what?” The first invites a noun phrase; the second invites an infinitive introduced by à. Then check that the success you claim actually happened. Good grammar does not correct an overstated result.

In ongoing work, Je n’ai pas encore réussi à terminer (I have not managed to finish yet) leaves open the possibility of later progress, without promising success.

Practice: report only what the facts support

Choose a suitable completion for each situation.

  1. You made three calls but nobody answered: J’ai ___ de contacter le groupe.
  2. Your poster looks good: J’ai réussi ___ affiche.
  3. You finally understand the diagram: J’ai réussi ___ comprendre le schéma.
  4. You completed one stage but the next remains unfinished. Write a two-part update.

Explained answers

For 1, essayé reports the effort without inventing contact. For 2, mon gives a direct noun object; no preposition is needed. For 3, à introduces the action achieved. Saying you merely tried would omit the useful information that understanding occurred.

A possible answer to 4 is J’ai réussi la première étape, mais je n’ai pas encore réussi à terminer la deuxième (I completed the first stage successfully, but I have not yet managed to finish the second). Other wording is possible. Check the factual boundary before checking the connectors: one stage is done, and one is not.

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Frequently asked

Questions about this note

Can c’est réussi be sarcastic?

Yes. Tone and context can turn an apparent compliment into criticism after a mishap. In a written exchange, add explicit praise if ambiguity would be awkward.

What does la réussite scolaire refer to?

It refers to educational achievement or success at school. It is broader than an individual mark and does not by itself name a particular qualification.

Does réussir sa vie only refer to a career?

No. The expression can concern a person's wider idea of a fulfilling life. Speakers may attach very different priorities to it.

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