A surprisingly large slice of everyday French is built from fixed prepositional phrases. À pied, en retard, par cœur, d'accord, en fait, à propos, en gros — these are not productive constructions you assemble from rules. They are stored, learned, and deployed as units. Try to back-form them from English and you'll fail every time: par doesn't always mean by, à doesn't always mean at, and en certainly doesn't always mean in.
This page is the practical reference. It groups the highest-frequency idioms by what they express — means of motion, time, manner, discourse markers — so you can drill them in clusters where the prepositions follow a discoverable pattern (even if no single rule covers everything).
Means of motion: à vs en
The pattern looks tidy at first: à for human-powered or animal-powered transport, en for vehicles you go inside. There's only one famous exception (à vélo / en vélo — both heard).
| Means | Expression | Note |
|---|---|---|
| on foot | à pied | unmarked default |
| on horseback | à cheval | also "à cheval sur" = straddling |
| by bike | à vélo (more common) / en vélo | both correct, à slightly preferred |
| by motorbike | à moto | |
| by car | en voiture | inside the vehicle |
| by bus | en bus | |
| by train | en train | |
| by plane | en avion | |
| by metro | en métro | |
| by boat | en bateau | |
| by taxi | en taxi |
The intuition is enclosure: if you sit inside the vehicle, en. If you straddle, perch on, or use your own body, à. À cheval and à vélo fit this — you sit on top, not inside. En voiture fits — you're inside.
Je vais au travail à pied tous les matins.
I walk to work every morning.
On y est allés en train, c'était plus tranquille.
We went there by train, it was more peaceful.
Elle voyage à cheval pendant deux semaines chaque été.
She travels on horseback for two weeks every summer.
On a fait Paris-Lyon en voiture en cinq heures.
We did Paris-Lyon by car in five hours.
Place expressions: at home, in bed, at the wheel
These look transparent until you compare them to English and notice the prepositions don't match.
| French | English |
|---|---|
| à la maison | at home |
| au lit | in bed |
| au volant | at the wheel (driving) |
| à table | at the table (eating) |
| au bureau | at the office |
| à l'école | at school |
| à l'étranger | abroad |
| à la campagne | in the countryside |
On reste à la maison ce week-end.
We're staying home this weekend.
Il est encore au lit à dix heures du matin.
He's still in bed at 10 a.m.
Au volant, ne téléphone jamais.
Never use your phone at the wheel.
À table, on ne parle pas la bouche pleine.
At the table, you don't talk with your mouth full.
Notice that au lit is fixed even though English uses in bed: French treats the bed as a destination/state rather than a container. Sur le lit exists, but it shifts the meaning to physical placement on top of the covers — le chat est sur le lit, not je suis sur le lit meaning I'm in bed.
Time expressions: on time, late, early
| French | English |
|---|---|
| à l'heure | on time |
| en retard | late |
| en avance | early (ahead of schedule) |
| de bonne heure | early (in the day) |
| à temps | in time |
| d'avance | in advance |
| par avance | in advance (formal) |
| à la dernière minute | at the last minute |
| à l'instant | just now (this very moment) |
| par moments | at times |
| à la fois | at once, simultaneously |
Désolé, je suis un peu en retard.
Sorry, I'm a bit late.
Pour une fois, j'arrive en avance.
For once, I'm arriving early.
Je te remercie d'avance pour ton aide.
Thank you in advance for your help.
Elle est tombée et s'est relevée à l'instant.
She fell and just got back up.
On ne peut pas tout faire à la fois.
You can't do everything at once.
Manner: par cœur, par hasard, à la lettre
These describe how something is done. The prepositions are fixed.
| French | English |
|---|---|
| par cœur | by heart |
| par hasard | by chance |
| par erreur | by mistake |
| par chance | luckily |
| par contre | on the other hand |
| à la lettre | to the letter, literally |
| à la légère | lightly, casually |
| à la main | by hand |
| à voix haute | aloud |
| à voix basse | in a low voice |
| à toute vitesse | at full speed |
| en silence | in silence |
| en douceur | gently |
| en colère | angry, in a rage |
| en larmes | in tears |
| de tout cœur | wholeheartedly |
| de bon cœur | gladly |
J'ai appris ce poème par cœur quand j'avais dix ans.
I learned this poem by heart when I was ten.
Je l'ai rencontré complètement par hasard à la gare.
I ran into him completely by chance at the station.
Elle a suivi les instructions à la lettre.
She followed the instructions to the letter.
Ne prends pas ce qu'il dit à la légère.
Don't take what he says lightly.
Quand elle est sortie, elle était en larmes.
When she came out, she was in tears.
Discourse markers: en fait, à propos, d'ailleurs
These are the conversational glue of spoken French. They signal a shift in the conversation, contradict an expectation, add a thought, or introduce a new topic. Drop them in casually and your French immediately sounds more natural.
| French | English | Use |
|---|---|---|
| en fait | in fact, actually | corrects or refines what came before |
| à propos | by the way | introduces a related thought |
| d'ailleurs | besides, by the way, moreover | adds supporting evidence |
| en gros | basically, roughly | summarizes briefly |
| au fond | fundamentally, deep down | introduces the underlying truth |
| à la rigueur | at a stretch, if absolutely necessary | concedes a marginal possibility |
| à vrai dire | to be honest, frankly | introduces an honest admission |
| en revanche | on the other hand | contrast (formal-ish) |
| par contre | on the other hand | contrast (everyday) |
| en effet | indeed | confirms |
| du coup | so, as a result | very common in casual speech |
| bref | in short | wraps up |
| enfin | well, anyway, finally | many uses, often a hedge |
| quand même | even so, anyway | concedes / pushes back |
| tout de même | all the same | slightly more formal quand même |
| dans tous les cas | in any case | |
| en tout cas | in any case | shorter, more casual |
En fait, je n'ai pas vraiment le temps ce soir.
Actually, I don't really have time tonight.
À propos, tu as parlé à Marie hier ?
By the way, did you talk to Marie yesterday?
C'est cher. D'ailleurs, je n'avais pas vu le prix au début.
It's expensive. By the way, I hadn't seen the price at first.
En gros, le projet a échoué à cause du budget.
Basically, the project failed because of the budget.
Au fond, il avait raison depuis le début.
Deep down, he was right from the start.
Du coup, on a annulé le voyage.
So, we cancelled the trip.
Agreement and emphasis
| French | English |
|---|---|
| d'accord | OK, agreed |
| bien sûr | of course |
| sans aucun doute | without a doubt |
| sans cesse | unceasingly, constantly |
| sans arrêt | non-stop |
| tout à fait | absolutely, exactly |
| pas du tout | not at all |
| en aucun cas | under no circumstances |
| à mon avis | in my opinion |
| de toute façon | anyway, in any case |
| de toute manière | anyway (slightly more formal) |
| en principe | in principle |
| en théorie | in theory |
| en pratique | in practice |
— On y va à huit heures ? — D'accord.
— Shall we go at 8? — OK.
Tout à fait, je suis du même avis.
Absolutely, I share that view.
Il pleut sans arrêt depuis trois jours.
It's been raining non-stop for three days.
En aucun cas tu ne dois ouvrir cette porte.
Under no circumstances are you to open this door.
De toute façon, on n'a pas le choix.
In any case, we have no choice.
Quantity, scale, and approximation
| French | English |
|---|---|
| en gros | roughly |
| à peu près | approximately |
| en moyenne | on average |
| en majorité | mostly |
| en partie | partly |
| en totalité | in full |
| à hauteur de | up to (formal: à hauteur de 50%) |
| de moins en moins | less and less |
| de plus en plus | more and more |
| de temps en temps | from time to time |
| de temps à autre | now and then |
On est à peu près quinze à venir au dîner.
There are about fifteen of us coming to dinner.
De temps en temps, j'aime me promener seul.
From time to time, I like to take a walk alone.
Les prix augmentent de plus en plus depuis l'an dernier.
Prices have been going up more and more since last year.
A note on register
Almost all the expressions on this page are register-neutral — they fit casual conversation, journalism, and most writing without any awkwardness. The exceptions are:
- Par avance (in advance) — slightly more formal than d'avance. (formal)
- En revanche (on the other hand) — slightly more formal than par contre, though both are fine.
- Tout de même — a touch more formal than quand même.
- Du coup — distinctly casual, sometimes flagged as overused. (informal)
If you're writing a formal letter or essay, you can use almost everything here, but you'd lean toward en revanche, par avance, tout de même, and avoid du coup and bref.
Common Mistakes
❌ Je voyage par voiture pour aller au travail.
Incorrect — vehicles you sit inside take en, not par.
✅ Je voyage en voiture pour aller au travail.
I drive to work.
Par + means of transport doesn't exist in French. The pattern is en (inside) or à (on top / human-powered).
❌ J'ai appris ce poème pour cœur.
Incorrect — the fixed phrase is par cœur, not pour cœur.
✅ J'ai appris ce poème par cœur.
I learned this poem by heart.
Par cœur is fixed — no logic to decompose. Memorize as a unit.
❌ Désolé, je suis un peu retard.
Incorrect — the noun phrase needs a preposition.
✅ Désolé, je suis un peu en retard.
Sorry, I'm a bit late.
Retard (noun: delay) is bare — to mean late you need en retard. Likewise en avance for early, à l'heure for on time.
❌ Au fait, ce projet est très difficile. (meaning: in fact, this project is very difficult)
Incorrect — au fait means by the way, not in fact.
✅ En fait, ce projet est très difficile.
Actually, this project is very difficult.
A famous trap. Au fait = by the way (introduces a new topic). En fait = actually, in fact (corrects what came before). They look interchangeable in writing but mean different things.
❌ Je suis dans la maison. (meaning: I'm at home)
Mostly incorrect for the at-home meaning — sounds like literally inside the building structure.
✅ Je suis à la maison.
I'm home.
À la maison is the fixed expression for at home. Dans la maison describes physical location inside the house structure — not the same thing.
Key Takeaways
- These expressions are stored as units, not assembled from rules.
- The transport split: à pied, à vélo, à cheval (on top / human-powered) vs en voiture, en train, en avion (inside).
- Time idioms with en: en retard, en avance — à l'heure for on time.
- Manner with par: par cœur, par hasard, par erreur; with à: à la lettre, à la légère, à la main.
- Discourse markers (en fait, à propos, d'ailleurs, du coup, en gros) are the conversational glue — drop them in.
- En fait and au fait look similar and mean different things — en fait corrects, au fait changes topic.
Now practice French
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- Transferring Prepositions from EnglishB1 — English prepositions don't map cleanly to French ones. This page is the source-language reference: for each common English preposition (in, on, to, for, by, with, about, at, of), it lists every French equivalent and the contexts that select each.
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