French language Q&A Forum

In an earlier lesson, we learned that for normal verbs, inversion is usually too formal. People usually say the sentence with an upward inflection or use Est-ce que.

Is that not so in the case of reflexive verbs?

In the grammar lesson, it explains that you can use either "en" or "de" in "un sac .... cuir". So to avoid confusion,  would it not be better to show that both "en" and "de" are also both acceptable answers in "Je possède un blouson _____ cuir". Or are they?