Prepositions in French: Avoiding Common Mistakes in TEF/TCF Writing

Introduction: The "Small" Words with Big Impact

In French, prepositions like à, de, en, pour, par, avec are often the most misunderstood part of the language. They are short, but they are the glue of your sentences.

A common mistake among English speakers is to directly translate English prepositions into French (e.g., saying "Je vais à France" instead of "Je vais en France"). In the Writing section of the TEF or TCF, these errors are marked as "Syntax and Grammatical Inaccuracies."

In this guide, we’ll clear the confusion around the most common prepositional pitfalls.

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Prepositions of Place (Les Prépositions de Lieu)

The rule depends on whether the destination is a city, a feminine country, or a masculine country.

1. Cities (Les Villes)

Always use à.

• Example: Je vais à Paris. / Je suis à Toronto.

2. Feminine Countries & Continents (Countries ending in -e)

Always use en.

• Example: Je vais en France. / Je suis en Afrique. / J'habite en Ontario (Wait! Quebec is an exception. But Ontario uses en).
• Wait! Mexico (Mexique) ends in -e but is masculine.

3. Masculine Countries (Countries NOT ending in -e)

Always use au (singular) or aux (plural).

• Example: Je vais au Canada. / Je suis au Japon. / Je vais aux États-Unis.

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Prepositions of Time (Les Prépositions de Temps)

1. En vs. Dans

• En: Used for the duration of an action.
  • J'ai fini le test en deux heures. (It took me 2 hours).
• Dans: Used for a point in the future.
  • Le train part dans dix minutes. (In 10 minutes from now).

2. Pour vs. Pendant

• Pendant: Used for a completed duration in the past or a general habit.
  • J'ai dormi pendant huit heures.
• Pour: Used for a planned future duration.
  • Je pars en vacances pour deux semaines.

3. Depuis vs. Il y a

• Depuis: For an action that started in the past and is still happening. Use the present tense.
  • J'apprends le français depuis trois ans. (I am still learning).
• Il y a: For a completed action in the past. Use the passé composé.
  • J'ai fini le test il y a une heure. (Finished).

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Common Confusion: "Thinking Of"

• Penser à: To have someone or something in your mind.
  • Je pense à mon examen.
• Penser de: To have an opinion about something.
  • Que penses-tu de ce livre?

Using the wrong preposition here can completely change the meaning of your response in the Speaking Section B when asking for the examiner's opinion.

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Subtle Pitch: Precision in Practice

Prepositions are about pattern recognition. You can't "think" about the rule each time; it has to be automatic. On prepmyfrench.com, our AI simulator flags each prepositional mismatch in real-time. If you say "Je vais à Canada," you receive immediate feedback so you can correct your "ear" for the right sound.

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Conclusion: Practice the Exception, Not the Rule

Memorize the masculine exceptions (au Mexique, au Mozambique). Once you've mastered those, the rest of the prepositional landscape becomes much easier to navigate.

Ready to master your prepositions? Try our Grammar Drill Simulator at PrepMyFrench today!