Practice FrenchB1
Passé composé vs imparfait
French often uses two past tenses together. The choice is not just about time; it is about how the speaker presents the action.
The core contrast
| Use | Tense | Example |
|---|---|---|
| A completed event | passé composé | J'ai ouvert la fenêtre. — I opened the window. |
| Background, description, habit, ongoing state | imparfait | Il faisait froid. — It was cold. |
| An event that interrupts background | passé composé | Je lisais quand Paul est arrivé. — I was reading when Paul arrived. |
Common patterns
- Use imparfait for age, weather, feelings, descriptions, and repeated habits: Quand j'étais petit, je jouais dehors.
- Use passé composé for a sequence of completed actions: Je suis entré, j'ai posé mon sac, puis j'ai appelé Marie.
- Some verbs can use either tense depending on meaning: Je voulais partir (I wanted to leave) vs J'ai voulu partir (I decided/tried to leave).
Watch out
Do not translate English past forms mechanically. "I was tired" is usually J'étais fatigué, but "I got tired" would be Je me suis fatigué or another completed-event form depending on context.
The photo and the film
A useful mental model: the imparfait is the film running in the background — what the scene looked like, what used to happen, what was ongoing. The passé composé is the photo — a datable event with edges: it started, it ended, it moved the story forward.
Il pleuvait, les cafés étaient pleins… (film) …et soudain Marie est entrée. (photo)
Signal words that tip the choice
Not a mechanical rule, but these adverbs correlate strongly:
| Leans imparfait | Leans passé composé |
|---|---|
| tous les jours, chaque été | un jour, une fois |
| souvent, toujours, d'habitude | soudain, tout à coup |
| pendant que | puis, ensuite, après |
| quand j'étais petit | hier, ce matin-là, en 2019 |
Quand j'étais petit, je jouais dehors tous les jours. Un jour, je suis tombé du vélo.
Verbs that change meaning between the tenses
A handful of verbs shift meaning depending on the tense — favourite exam material:
| Verb | Imparfait | Passé composé |
|---|---|---|
| savoir | je savais — I knew (state) | j'ai su — I found out |
| connaître | je connaissais — I knew (a person, a place) | j'ai connu — I met |
| vouloir | je voulais — I wanted | j'ai voulu — I decided to, I tried to |
| pouvoir | je pouvais — I was able to (in general) | j'ai pu — I managed to |
| devoir | je devais — I was supposed to | j'ai dû — I had to, I must have |
Common mistakes
- ❌ Translating every English "-ed" with the passé composé. "I lived in Lyon" as background is J'habitais à Lyon; as a closed chapter, J'ai habité à Lyon pendant un an. The tense follows how you present the action, not the English form.
- ❌ Treating j'étais malade and j'ai été malade as interchangeable — j'étais malade describes the state during the scene; j'ai été malade reports a bounded episode.
- ❌ Rendering habitual English "would" with the conditional: "Every summer we would swim" is chaque été, nous nagions — imparfait, not nous nagerions.
Quick answers
Is there a third past tense? In novels you will meet the passé simple (il entra), a literary stand-in for the passé composé. Learn to recognise it; you almost never need to write it.
Which auxiliary does the passé composé take? Avoir for most verbs, être for the movement/change set and all reflexive verbs — with the agreement rules covered in participle agreement.
Can both tenses share one sentence? Constantly — that is the normal texture of French narration: Je lisais quand Paul est arrivé.
See the contrast in a real text
The B1 story La lettre du phare alternates description and event exactly this way. Read one paragraph asking, for each past verb: film or photo? Then push on to future forms to complete your narration toolkit.
Try three examples
Example 1
Choose the sentence in which an activity was already in progress when a single completed event occurred.
- J'ai lu quand Paul arrivait.
- Je lisais quand Paul est arrivé.
- J'ai lu quand Paul est arrivé.
- Je lisais quand Paul arrivait.
Show answer
Je lisais quand Paul est arrivé.
I was reading when Paul arrived.
Example 2
Complete with the imparfait form of «être» that fits the sentence.
Elle ___ très fatiguée hier soir.
Show answer
était
She was very tired yesterday evening.
Example 3
Complete with the imparfait form of «faire» that fits the sentence.
Il ___ froid quand nous sommes sortis.
Show answer
faisait
It was cold when we went out.
Conjugate the verbs from this lesson
Practice this lesson
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