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Short answer: the four errors that cost the most are answering beside the prompt, ignoring the word count, writing without a plan, and repeating the same grammatical mistake. None of them is a vocabulary problem — all four are fixable in a few sessions.

1. Not answering the prompt exactly

This is the most expensive error in the section. A well-written text that addresses a slightly different question is marked as off-topic, and no amount of good French recovers those points.

The fix takes thirty seconds: read the prompt twice, underline the verbs of instruction, and check your finished text against them before moving on.

2. Ignoring the required word count

Each task defines a range. Going far under signals you could not develop the idea; going far over usually means you lost the structure. Both are penalised regardless of quality.

Learn what your own word count looks like on screen or on paper, so you can estimate without counting during the exam.

3. Writing without structure

Examiners score coherence explicitly. A text that wanders loses marks even when every sentence is correct.

Two minutes of planning — position, two arguments with examples, conclusion — is the highest-return habit in this section. For task 3 in particular, the plan is what carries the mark.

4. Weak vocabulary and recurring errors

Most candidates repeat the same handful of mistakes: agreement, verb endings, prepositions, and one or two overused connectors. Fixing a pattern fixes dozens of future occurrences.

  • Keep a personal error log rather than correcting item by item.
  • Vary connectors deliberately — de plus, en revanche, en effet, en somme.
  • Prefer a simple structure used correctly to an ambitious one used wrongly.

Fixing your mistakes effectively

You cannot diagnose your own writing reliably — that is the core difficulty. You need correction against the official criteria, which is what separates progress from repetition.

The writing section is 3 tasks in 60 minutes, scored out of 20. At NCLC 7 you need 10 to 11; at NCLC 9, 14 to 15. That gap is closed by structure and precision, not by vocabulary lists.

SectionFormatDurationScored
Listening39 multiple-choice questions, played once35 min100 – 699
Reading39 multiple-choice questions60 min100 – 699
Writing3 tasks60 min0 – 20
Speaking3 tasks with an examiner12 min0 – 20

Source: the exam structure is confirmed by accredited centres: Concordia University states that all four TCF Canada sections are taken on the same day, with 39 multiple-choice questions in both listening and reading.

NCLCReadingListeningWritingSpeaking
10+549 – 699549 – 69916 – 2016 – 20
9524 – 548523 – 54814 – 1514 – 15
8499 – 523503 – 52212 – 1312 – 13
7453 – 498458 – 50210 – 1110 – 11
6406 – 452398 – 4577 – 97 – 9

Source: the NCLC conversion tables and the thresholds required for Canadian immigration programs are published by Immigration, Refugees and Citizenship Canada. These requirements change from time to time.

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The rule that catches most candidates: your profile is worth your weakest skill, never the average. An NCLC 9 in listening does not compensate an NCLC 6 in writing.

Preparing properly

The TCF Canada is identical worldwide: same sections, same scoring, same NCLC conversion. Where you sit it changes nothing about how you prepare.

On TCFCAD, 40 reading series and 40 listening series reproduce the official format with real timing and explained corrections. The writing and speaking simulators use AI feedback based on the official assessment criteria. The first 3 series of each section are free, with no sign-up required. Start with the free mock test to find out where you actually stand.