Logical Connectors: car, parce que, donc, mais & More

Introduction

Connectors are the glue of fluent writing and speech. They transform a list of short sentences into an argument, a narrative, an explanation — a piece of prose that a reader can follow. In French, logical connectors (les connecteurs logiques) do four jobs: they say why (cause), what happened next or what that means (consequence), how ideas contrast, and the order of events (sequence).

Learning them is also the single fastest way to improve your TEF or TCF exam score. An examiner reading your expression écrite sees immediately whether you can use connectors — they are the skeleton of a paragraph. This lesson teaches the exact differences between the near-synonyms (car / parce que / puisque, donc / alors, mais / pourtant) so you pick the right one, not just any one.

Cause: Why Something Happened

Four connectors answer “why?”

car — formal, written, cannot start a sentence

“Il reste à la maison, car il est malade.” (He is staying home, for he is sick.)

• Written and formal. You will see it in literature and serious texts; you will rarely hear it in conversation.
• Cannot open a sentence — “Car il est malade, il reste à la maison” is wrong.
• Links a whole thought, not just a noun or verb. You say “parler de” or “avoir peur de” or “car”, not “avoir car”.

parce que — general reason, can start a sentence

“Elle est contente parce qu’ elle a réussi son examen.” (She is happy because she passed her exam.)

• The everyday word. When you say “why” in conversation, use parce que.
• Can open a sentence — “Parce qu’il pleuvait, nous sommes restés à la maison.” (Because it was raining, we stayed home.) The main clause then follows.
• Answers a new question. “Why is she happy?” “Because she passed the exam.”

puisque — a reason already known or accepted

“Puisque tu es là, tu peux m’aider.” (Since you are here [which we both know], you can help me.)

• Introduces a reason the listener already knows, accepts, or has already heard. Do not use this to drop a bomb of new information.
• Can open a sentence. “Puisque tu le sais, je ne répète pas.”
• Formal, less common than parce que, but vital in writing.

comme — reason at the start, sets up the main idea

“Comme il pleuvait, nous sommes restés à la maison.” (As it was raining, we stayed home.)

• Always opens a sentence. The reason clause comes first, then the result.
• Formal. The reason is presented as context, not as an answer to “why?” — it frames the main idea.
• Never follows another clause — you do not say “Il pleuvait comme nous sommes restés” (that is backwards).

The Cause Table

Connector	Formal?	Starts a sentence?	For new or known reasons?	Example
car	Very formal	No	New (but literary)	Il ne vient pas, car il est fatigué.
parce que	Everyday	Yes	New	Je suis heureux parce que tu es là.
puisque	Formal	Yes	Already known	Puisque tu le sais, pourquoi demandes-tu?
comme	Formal	Yes (always)	Context for what follows	Comme il était tard, on est partis.

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Consequence: What Happened As A Result

Two connectors state what happened because of the cause.

donc — therefore, logical conclusion

“Il a étudié dur, donc il a réussi.” (He studied hard, therefore he succeeded.)

• Formal and strong. The conclusion follows logically from what came before.
• Cannot start a new sentence in formal writing — “Donc, il a réussi” is weak. Use it mid-sentence or rephrase: “C’est pourquoi il a réussi.”
• The result is expected — the cause makes the consequence inevitable.

alors — so then, conversational consequence

“Le bus est arrivé, alors on est montés.” (The bus arrived, so then we got on.)

• Lighter and more conversational. Often marks a sequence: one thing happened, then the next happened.
• Can start a sentence — “Alors, il a décidé de partir.”
• In formal writing, use donc instead.

c’est pourquoi — that is why, formal and clear

“Il était malade ; c’est pourquoi il n’est pas venu.” (He was sick; that is why he did not come.)

• Very clear. It announces “and here is the result of what I just told you.”
• Starts its own sentence or clause. “Il était malade. C’est pourquoi il n’est pas venu.”
• Often formal — you will see it in explanatory writing and exams.

The Consequence Table

Connector	Formal?	Typical position	Example
donc	Very formal	Mid-sentence preferred	Il a étudié, donc il a réussi.
alors	Conversational	Either, often with sequence	Nous avons fini, alors on a dîné.
c’est pourquoi	Formal	Starts a clause	Il pleuvait. C’est pourquoi on est restés.

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Contrast: Opposite Or Surprising Ideas

Three connectors show that two ideas clash or contradict.

mais — but, simple contrast

“L’appartement est petit mais confortable.” (The flat is small but comfortable.)

• The most common contrast word. Two simple opposite ideas: small AND comfortable.
• Casual and clear.
• Cannot open a sentence — you do not say “Mais il est confortable” on its own; it must follow another clause.

pourtant — yet, however, surprising result

“Il a étudié dur ; pourtant, il a échoué.” (He studied hard; yet he failed.)

• Marks a surprising or contradictory result. The second idea is not what you would expect from the first.
• Very formal. Use this in essays.
• Can start a sentence, but rarely. “Pourtant, cela s’explique.”

cependant — however, formal and studied

“Le film est long. Cependant, il est excellent.” (The film is long. However, it is excellent.)

• Very formal and written. The most “textbook” way to mark contrast.
• Usually starts its own sentence. “Le prix est élevé. Cependant, la qualité vaut le coût.”
• Implies a reasoned judgment, not just a surprise.

The Contrast Table

Connector	Meaning	Formal?	Tone	Example
mais	But	No	Plain	C’est cher mais bon.
pourtant	Yet (surprising)	Yes	Contradictory	Elle a travaillé ; pourtant, elle a échoué.
cependant	However (judged)	Very	Weighed	Le livre est long. Cependant, il fascine.

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Sequence: The Order Of Events

Four connectors mark steps in a sequence or process.

d’abord — first (of all)

“D’abord, on fait bouillir l’eau.” (First, you boil the water.)

• Opens a sequence. Something is about to start.
• Always comes early — you do not say “On fait d’abord bouillir l’eau” (it comes at the start).
• Formal. Can be conversational too: “D’abord, je veux dormir.”

ensuite — next (then)

“On fait bouillir l’eau. Ensuite, on ajoute le thé.” (You boil the water. Next, you add the tea.)

• A step after the first one. Not as heavy or deliberate as d’abord.
• Casual and clear.

puis — then (a light step)

“Je finis mon travail, puis je dîne.” (I finish my work, then I have dinner.)

• Very close to ensuite — both mark the next step.
• Slightly lighter. “Puis” feels like one event rolling into the next.
• Comes naturally after the previous event.

enfin — finally (at last)

“Enfin, le gâteau est prêt.” (Finally, the cake is ready.)

• Closes a sequence. After “d’abord… ensuite… “, you say “enfin”.
• Marks the end or the conclusion — “Enfin, pour conclure” (Finally, to sum up).
• Can convey relief or impatience — “Enfin! J’attendais depuis une heure.”

The Sequence Table

Connector	Role	Tone	Example
d’abord	First (opening)	Deliberate	D’abord, lisez l’introduction.
ensuite	Next (a step)	Clear	On étudie le texte. Ensuite, on discute.
puis	Then (lighter)	Easy flow	Je lis, puis je réponds.
enfin	Finally (closing)	Concluding	Rélisez tout. Enfin, remettez-le.

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Common Mistakes

1. “Parce que” at the start of a formal essay — use “Puisque” or rephrase: “La raison pour laquelle” (the reason why). Parce que is fine in conversation or informal writing.
2. “Car” opening a sentence — wrong in all registers. Always place it mid-sentence: “Il ne vient pas, car il est malade.”
3. “Mais” opening an idea on its own — does not work. “Mais it is good” (French: “Mais c’est bon”) must follow another clause.
4. Confusing “donc” with “alors” in formal writing — in an exam, use “donc” for logical results. Save “alors” for stories or speech.
5. “Pourtant” and “cependant” used interchangeably — they are not. Pourtant emphasises surprise; cependant is a weighed judgment. “He studied, pourtant he failed” (surprising). “The book is long, cependant it is worth it” (a considered opinion).

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Summary: One Sentence Per Connector

Connector	One-sentence rule
car	Formal, written reason that cannot start a sentence.
parce que	Everyday reason for new information; can start a sentence.
puisque	A reason already known or accepted; formal.
comme	Formal reason that frames what follows; always starts.
donc	Logical conclusion; formal; mid-sentence preferred.
alors	Conversational result or sequence marker.
c’est pourquoi	Clear announcement of a result; starts a clause.
mais	Plain contrast; cannot start alone.
pourtant	Surprising contradiction; formal.
cependant	Judged contrast; formal; usually starts a sentence.
d’abord	Opens a sequence.
ensuite	Next step; clear and light.
puis	Then; a lighter step.
enfin	Finally; closes a sequence.

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Practice

Choose the right connector:

1. “Je suis fatiguée _____ (parce que / puisque) j’ai travaillé douze heures.” (I’m tired because I worked twelve hours.) → parce que (new information, answering “why”).
2. “_____ (Comme / Car) il était tard, on a décidé de partir.” (As it was late, we decided to leave.) → Comme (must start a sentence).
3. “Elle a beaucoup étudié, _____ (donc / alors) elle a réussi.” (She studied a lot, therefore she passed.) → donc (logical conclusion in formal writing).
4. “Le prix est cher. _____ (Pourtant / Cependant), le produit est excellent.” (The price is high. However, the product is excellent.) → Cependant (weighed judgment, starting a sentence).
5. “_____ (D’abord / Puis) on lit, _____ (puis / enfin) on écrit.” (First you read, then you write.) → D’abord / puis (sequence markers).

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What’s Next

Now that you understand the differences, practise them in context:

• Read the interactive cloze story Le Jour de l’Examen (A2, linking words in a real narrative).
• Drill these connectors at your pace: Connectors game — car, parce que, donc, mais… (94 items, all four functions shuffled).
• Apply them in exam preparation: Reading comprehension strategy.