French false friends that trip up English speakers in the TCF/TEF

Faux amis are the mistakes that survive everything. You can study French for years and still write actuellement for currently, because it looks so obviously right to an English eye that you never think to check it. That is precisely why they cost marks in the exam: they are confident errors, not hesitant ones.

False friends are also an anglophone-specific problem, which means they are worth targeting directly rather than hoping general study clears them. A French speaker learning English never makes these; you make them because English handed you a word that betrays you in French.

What is a false friend, exactly?

A false friend is a French word that looks or sounds like an English one but means something different, sometimes slightly, sometimes completely. The slight ones are the dangerous ones, because the sentence still makes a kind of sense, so no reader stops you and no marker has to guess what you meant. It just reads as slightly off, and slightly off, repeated, is what keeps a text out of the top band.

Which false friends show up most in the exam?

These are the ones that appear again and again in exam writing and speaking:

That last one is almost too perfect for a French exam. A candidate who writes j’ai passé le TCF meaning I passed the TCF has said only that they sat it. To say you passed, you need j’ai réussi.

Why do calques cap your register?

A calque is subtler than a single false friend: it is an English structure translated word for word into French that no French speaker would use. These rarely count as outright errors, but they are the clearest sign to a marker that a text was thought in English and converted, which is exactly what keeps it out of the range where the writing reads as genuinely French.

• Je suis excité for I am excited. It reads as sexual; the exam-safe word is j’ai hâte or je suis enthousiaste.
• Introduire quelqu’un for to introduce a person. You présentez a person; introduire is to insert an object.
• Supporter for to support an argument. It means to tolerate or to endure; you soutenez an argument or a person.
• Faire du sens for to make sense. French says avoir du sens: cela a du sens.

Which false friends hide in academic and opinion writing?

The exam pushes you toward argument and abstraction, and a second layer of faux amis lives exactly there, where they are hardest to notice because the whole register feels serious and correct.

• Actuel means current, not actual. Today’s situation is la situation actuelle; the actual situation is la situation réelle.
• Important leans toward large in size or number as much as significant: une somme importante is a large sum. It is not wrong for significant, but do not assume it always maps to English important.
• Comprehensive has no cognate; do not write compréhensif, which means understanding as in sympathetic. Use complet or détaillé.
• Achever means to finish or complete, not to achieve. To achieve is réaliser or accomplir.

These are the ones that read as fluent errors: the sentence is grammatical, the word is real French, and only the meaning is off by a degree. That degree, repeated across a text, is what a marker registers.

How do you stop making them?

You cannot catch a false friend by rereading, because it does not look wrong to you; that is its whole nature. What works is keeping a personal list of the ones you have actually been caught on, and learning them as pairs, French meaning against the English trap, not as isolated vocabulary. Ten of your own errors are worth more than a hundred from someone else’s list.

It also helps to build the habit of doubting whole families of words. If an English word ends in -ally, -ually or looks Latinate, treat the obvious French cognate as a suspect until you have confirmed it, because that is precisely where faux amis cluster: eventually, actually, currently. A two-second pause on those words in a draft prevents more errors than any amount of rereading, since rereading is blind to them.

The list only fills up if someone marks your work, which is the honest limit of self-study here: you cannot correct an error you cannot see. The marked TCF Canada expression écrite and TEF Canada expression écrite work in the live tiers is built to surface exactly these, because they are the errors a fluent-sounding candidate is least likely to find alone.

And when you draft a practice text, resist the urge to reach for the word that looks like its English twin. If a word feels too convenient, it is worth a two-second doubt. Count the finished text in the word counter and, before you decide your French is exam-ready, get one text read against real criteria in the TCF Canada course.