Devoir in the Passé composé Tense in French

Introduction

Devoir means “to must, to owe”, and this page covers exactly one thing: devoir in the passé composé. The passé composé is the tense French speakers reach for when they talk about completed actions in the past — what happened yesterday, last week, or a moment ago. On this page you will find the full passé composé table for devoir, how the tense is formed for this verb, the situations where it is used, how it differs from the imperfect, worked examples, the mistakes learners make most often, an eight-question quiz with explained answers, and answers to the questions students ask about devoir in the passé composé. For example: “J'ai dû partir tôt demain cette semaine.” — “I have had to leave early tomorrow this week.” Everything on this page uses the forms of devoir exactly as they are conjugated in the passé composé, so you can trust every form you see here.

Devoir in the Passé composé Tense — full table

Person Form
je ai dû
tu as dû
il/elle a dû
nous avons dû
vous avez dû
ils/elles ont dû

Gerund: devant · Past participle: dû

The gerund is devant, which you use after en for an action happening at the same time as another action. The past participle is dû, which you use with avoir in the perfect tenses: the je form of the present perfect is ai dû, used for a completed action. Keep both forms in mind as you read the examples below, because the passé composé is only one part of how devoir is used.

How the passé composé of devoir is formed

The passé composé of devoir is formed with the auxiliary avoir in the present plus the past participle dû: the auxiliary forms are je ai, tu as, il/elle a, nous avons, vous avez, ils/elles ont. Put the two parts together and you get the table above — for example, the je form is ai dû and the ils form is ont dû. The participle dû never changes its spelling in this table: the verified dump gives the participle in the masculine singular form throughout, and agreement with the subject is a separate step that depends on the sentence.

Because devoir takes avoir as its auxiliary, the passé composé is built the same way as for most French verbs: avoir in the present, then dû. That is the first thing to check whenever you build a perfect tense with this verb: reach for avoir, and then add dû.

The same participle dû appears in the pluperfect, the future perfect and the conditional perfect — only the auxiliary changes tense. Learn the pair “avoir + dû” once and you have the key to all four perfect tenses of devoir.

When to use the passé composé of devoir

The passé composé is not a single-purpose tense. Below are the five situations where you will use devoir in the passé composé most often. Each one comes with a real example, so read the rule, then say the example out loud.

1. Having to leave early tomorrow — finished

When the action of having to leave early tomorrow is finished, the passé composé is the tense to use. It presents the action as complete, with a clear end. Example: “J'ai dû partir tôt demain cette semaine.” — “I have had to leave early tomorrow this week.”

2. Having to do my homework — finished

The same rule applies to having to do my homework: once the action is done, the passé composé reports it as a completed fact. Example: “Tu as dû faire mes devoirs cette semaine.” — “You have had to do my homework this week.”

3. Having to go to the doctor — finished

A third everyday situation is having to go to the doctor, and again the passé composé is right when the action is finished. Example: “Il a dû aller chez le médecin cette semaine.” — “He has had to go to the doctor this week.”

4. A sequence of completed actions

The passé composé is the tense of the story told step by step: first this happened, then that happened. When you tell someone what you did yesterday, you chain passé composé forms together, one per finished action. Example: “Nous avons dû partir tôt demain cette semaine.” — “We have had to leave early tomorrow this week.”

5. Recent past and life experience

The passé composé also covers the recent past and things that have happened at some point in your life. With time words such as hier, la semaine dernière or ce matin, the passé composé is the natural choice. Example: “Vous avez dû faire mes devoirs cette semaine.” — “You have had to do my homework this week.”

Passé Composé vs Imperfect: how to choose

The closest tense to the passé composé is the imperfect, and learners mix them up constantly. The rule is simple: the imperfect describes an ongoing or habitual past action, while the passé composé describes one finished action. The three pairs below use the same verb, so the only thing that changes is the time frame — and with it, the tense. Notice how the passé composé sentences use words such as tous les jours or hier, while the imperfect sentences use autrefois or quand. Those time words are your best clue when you are choosing a tense.

  • Passé composé: “J'ai dû partir tôt demain cette semaine.” — “I have had to leave early tomorrow this week.”

  • Imperfect: “Je devais partir tôt demain autrefois.” — “I used to must leave early tomorrow in the past.”

  • The passé composé sentence is about the present moment or one finished action; the imperfect sentence is about the past as it used to be. That difference — now or finished versus ongoing in the past — is the whole decision.

  • Passé composé: “Tu as dû faire mes devoirs cette semaine.” — “You have had to do my homework this week.”

  • Imperfect: “Tu devais faire mes devoirs autrefois.” — “You used to must do my homework in the past.”

  • The passé composé sentence is about the present moment or one finished action; the imperfect sentence is about the past as it used to be. That difference — now or finished versus ongoing in the past — is the whole decision.

  • Passé composé: “Nous avons dû aller chez le médecin cette semaine.” — “We have had to go to the doctor this week.”

  • Imperfect: “Nous devions aller chez le médecin autrefois.” — “We used to must go to the doctor in the past.”

  • The passé composé sentence is about the present moment or one finished action; the imperfect sentence is about the past as it used to be. That difference — now or finished versus ongoing in the past — is the whole decision.

Example sentences: devoir in the passé composé

Read these eight sentences out loud. They cover all six persons, so by the end you will have seen every form in the table used in a real sentence. Pay attention to the words around the verb — the time expressions, the objects, the other words — because those are what make each sentence sound natural.

  1. “J'ai dû faire mes devoirs cette semaine.” — “I have had to do my homework this week.”

  2. “Tu as dû aller chez le médecin cette semaine.” — “You have had to go to the doctor this week.”

  3. “Il a dû partir tôt demain cette semaine.” — “He has had to leave early tomorrow this week.”

  4. “Nous avons dû faire mes devoirs cette semaine.” — “We have had to do my homework this week.”

  5. “Vous avez dû aller chez le médecin cette semaine.” — “You have had to go to the doctor this week.”

  6. “Ils ont dû partir tôt demain cette semaine.” — “They have had to leave early tomorrow this week.”

  7. “J'ai dû faire mes devoirs cette semaine.” — “I have had to do my homework this week.”

  8. “Tu as dû aller chez le médecin cette semaine.” — “You have had to go to the doctor this week.”

Common mistakes with devoir in the passé composé

These are the errors learners actually make with this verb in this tense. Each one shows the wrong version, the right version, and why the correction matters.

  • Wrong: “Je dois partir tôt demain hier.” Right: “Je ai dû partir tôt demain hier.” Why: For one finished action yesterday, use the passé composé ai dû, not the present dois. The time word hier points to the past.

  • Wrong: “Je ai dû partir tôt demain tous les jours.” (said of a daily habit) Right: “Je dois partir tôt demain tous les jours.” Why: The passé composé ai dû describes one finished action. For something you do every day, use the present dois.

  • Wrong: “Je avoir partir tôt demain.” — leaving out the participle Right: “Je ai dû partir tôt demain.” Why: The passé composé needs both parts: the auxiliary avoir and the participle dû. The auxiliary alone is not a complete passé composé.

  • Wrong: “Je devais partir tôt demain hier.” (said of one finished action) Right: “Je ai dû partir tôt demain hier.” Why: The imperfect devais describes an ongoing past situation. For one finished action yesterday, use the passé composé ai dû.

Quiz: devoir in the passé composé

Choose the correct answer for each question, then check the answer key. Every answer is explained, so a wrong answer still teaches you something.

1. Complete the sentence: “Je ______ faire mes devoirs.”

  • (A) as dû
  • (B) a dû
  • (C) avons dû
  • (D) ai dû

2. Complete the sentence: “Tu ______ aller chez le médecin.”

  • (A) avons dû
  • (B) as dû
  • (C) ai dû
  • (D) a dû

3. Complete the sentence: “Il ______ partir tôt demain.”

  • (A) a dû
  • (B) ai dû
  • (C) as dû
  • (D) avons dû

4. Complete the sentence: “Nous ______ faire mes devoirs.”

  • (A) as dû
  • (B) a dû
  • (C) avons dû
  • (D) ai dû

5. Complete the sentence: “Vous ______ aller chez le médecin.”

  • (A) ai dû
  • (B) as dû
  • (C) a dû
  • (D) avez dû

6. Complete the sentence: “Ils ______ partir tôt demain.”

  • (A) ont dû
  • (B) ai dû
  • (C) as dû
  • (D) a dû

7. What does devoir mean in English?

  • (A) to find
  • (B) to speak
  • (C) to must, to owe
  • (D) to give

8. What is the past participle of devoir?

  • (A) parlé
  • (B) dû
  • (C) donné
  • (D) trouvé

Answer key

  1. D) ai dû — The je form is ai dû.
  2. B) as dû — The tu form is as dû.
  3. A) a dû — The il/elle form is a dû.
  4. C) avons dû — The nous form is avons dû.
  5. D) avez dû — The vous form is avez dû.
  6. A) ont dû — The ils/elles form is ont dû.
  7. C) to must, to owe — devoir means “to must, to owe”. The other options are the meanings of different verbs.
  8. B) dû — The past participle of devoir is dû; the passé composé is formed with avoir + dû.

Frequently asked questions

How is the passé composé of devoir formed?

With the auxiliary avoir in the present plus the past participle dû: je ai dû, tu as dû, il a dû, nous avons dû, vous avez dû, ils ont dû.

When do I use the passé composé of devoir?

Use the passé composé for completed actions in the past, especially in spoken French — for example, “J'ai dû partir tôt demain cette semaine.” — “I have had to leave early tomorrow this week.” For an ongoing or habitual past action, use the imperfect instead.

What is the difference between the passé composé and the imperfect of devoir?

The passé composé reports one finished action; the imperfect describes background, habit or an action in progress in the past. Compare “J'ai dû partir tôt demain cette semaine.” with “Je devais partir tôt demain autrefois.” — the first is finished, the second is ongoing in the past.

Pronunciation

Pronunciation is not listed on this page: the verified tables do not include IPA for devoir, so no pronunciation is given rather than an invented one.

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