10 Most Common Mistakes on the TEF/TCF Speaking Exam (And How to Avoid Them)

The Speaking section (Expression Orale) is the most feared part of the TEF Canada and TCF Canada exams. Unlike Reading and Listening, where you can guess between multiple choices, Speaking requires you to produce French in real-time under pressure.

After analyzing thousands of speaking simulations on PrepMyFrench, we have identified the 10 most common mistakes candidates make—and exactly how to fix them before exam day.

Mistake #1: Using "Tu" Instead of "Vous"

The Problem: Under stress, many candidates slip into the informal tu register, especially during roleplay scenarios where they are speaking to a shopkeeper, a landlord, or a service provider.

The TEF and TCF Speaking exams always require the formal register. Even when the examiner uses a friendly tone, you must respond formally. Practice saying and until they become automatic.