Languages › French Does 'Il Est Important Que' Need the Subjunctive? Verbs, Expressions and Conjunctions That Require the French Subjunctive Share Flipboard Email Print French Grammar Pronunciation & Conversation Vocabulary Resources For Teachers By ThoughtCo Updated October 18, 2017 The expression il est important / c'est important means is how you say "it is important" in French, and it requires the subjunctive. In French, phrases that express necessity require the subjunctive, and il est important falls under that rule. Examples Il est important / C'est important qu'il le fasse.It's important that he do it. Il est important / C'est important que tu écrives la lettre.It is important that you write the letter. Il est important / C'est important que vous appreniez le français.It's important that you learn French.