TCF Canada writing task 1: the register mistake that costs marks

Last updated: 24 August 2026 · 5 min read

TCF Canada writing Task 1 is not scored on whether you hit 90 words instead of 75. It is scored partly on register — whether your tone actually matches the person the prompt tells you to write to. A grammatically perfect message written in the wrong tone for its addressee loses marks that a shorter, simpler message in the right tone would have kept.

France Éducation international, which owns TCF Canada, describes Task 1 as a short practical message, typically 60–120 words. Our TCF Canada exam format guide covers how it fits alongside the other two writing tasks.

"Task 1 is informal" is not quite the rule

Most preparation advice shortens this to "Task 1 uses tu, Task 2 and 3 use vous." That is true most of the time, but it is a side effect of the actual rule, not the rule itself. Task 1 asks you to write to someone specified in the prompt — a friend, a family member, sometimes a colleague or a landlord. The register you need is whichever one fits that specific person, not a fixed setting for "Task 1."

Write to a close friend with vous and formal closings, and it reads as stiff and strange — nobody actually talks to a friend that way. Write to a prospective landlord with tu and casual slang, and it reads as disrespectful, regardless of how accurate your grammar is. Both are register mistakes, in opposite directions, and both are graded down the same way.

A worked example: same content, two registers

Prompt: Write to a friend to invite them to your birthday dinner on Saturday.

Wrong register (too formal for a friend):

"Madame, je vous écris pour vous informer que j'organiserai un dîner d'anniversaire samedi prochain. Je vous serais reconnaissant de bien vouloir confirmer votre présence. Cordialement."

This is fluent, accurate French — and it reads like a message to a stranger, not an invitation to a friend's birthday. The content is correct; the relationship it implies is wrong.

Correct register (matches "a friend"):

"Salut ! Je fête mon anniversaire samedi soir, tu es libre ? Ce serait super de t'avoir avec nous, on prévoit un dîner à la maison vers 19h. Dis-moi si ça te dit ! À bientôt."

Same information — the day, the event, a request to confirm — delivered in a tone that actually matches who it's addressed to. Notice it does not need to be longer or more complex to be correct; it needs to sound like something you'd actually send a friend.

Setting the register before you write a word

• Identify the addressee first. Before drafting anything, decide: is this a friend, a family member, a colleague, or someone in authority? That answer sets your register for the entire message.
• Pick your opening and closing to match. "Salut" and "À bientôt" signal informal; "Madame/Monsieur" and "Cordialement" signal formal. Mixing one of each — a casual opening with a formal closing, or the reverse — is the single most common register error, because it reads as if two different people wrote the message.
• Stay consistent for the whole message. One slip doesn't ruin a response, but a message that drifts between tu and vous partway through reads as an accuracy error even when every individual sentence is grammatically fine.

Common mistakes

Defaulting to formal because it feels safer. Many English-first candidates over-correct toward formality, assuming it can't be marked wrong. It can — an overly formal message to a friend is graded on the same mismatch as an overly casual one to a stranger.

Translating an English habit directly. English doesn't force a tu/vous choice, so English-first writers sometimes don't consciously decide the register at all — they default to whatever verb forms feel natural, which often drifts mid-message rather than committing to one register throughout.

Treating the closing as an afterthought. "Cordialement" on an otherwise warm, casual message is the most common single-line register error, because candidates write the body first and bolt on a "safe-sounding" closing without checking it matches what came before.

Practicing this for real

Register is genuinely hard to self-check, because a message can be fluent and still wrong for its audience — spotting that requires feedback against the actual criteria, not just a grammar check. Our AI writing feedback scores Task 1 responses against register alongside the other criteria, not word count alone. If writing turns out to be your weakest skill once you check, our TCF Canada NCLC calculator shows what your score converts to, and our 12-week study plan covers how to weight your practice time toward it.

Practice the real thing

SailTCF is AI-powered TCF Canada preparation built in English for English speakers: realistic practice across all four skills, with AI-assisted feedback and estimated NCLC bands for writing and speaking. Start free with SailTCF. SailTCF scores are practice estimates, not official TCF results.

SailTCF is an independent exam-preparation tool. We are not affiliated with IRCC, France Éducation international, CCI Paris Île-de-France, TCF Canada or TEF Canada, we are not immigration consultants, and nothing here is immigration advice. Score conversions, exam formats and points rules change — always confirm the current requirements against the official sources above before making a decision about your application.