A transference error is a certain type of mistake, common to foreign language learners, which can be particularly difficult to stop making. The hardest part is becoming aware of the error; once you’ve done that, it’s just a matter of figuring out the correction and practicing your way to perfection.
The terms "open" and "closed" have two related meanings in regard to pronunciation: open vowels and closed vowels, and open syllables and closed syllables.
The second form of the conditional perfect is the literary equivalent of the conditional perfect.
Indefinite relative pronouns (ce dont, ce que, ce qui, ce à quoi) are connectors: they link relative clauses to main clauses and, unlike normal relative pronouns, do not not have a specific antecedent.