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What’s the Difference Between “C’est” and “Il est” in French?

  • Grammar


🤔 Confused between “c’est” and “il est”? You’re not alone!

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This guide will show you the difference, step by step.


🧠 First, what do they mean?

Both “C’est” and “Il est” can mean “It is” / “He is” / “She is” in English.

So why are there two versions?
Because in French, the structure depends on what comes next.

Let’s make it simple.


🔹 Rule 1: Use “C’est” + noun or article + adjective

👉 Use “C’est” when it’s followed by:

  • a noun (person or thing)
  • an article + adjective
  • a possessive word (like “my”, “his”)
  • names, professions, or things described in general

✅ Examples:

  • C’est un professeur. → He’s a teacher.
  • C’est ma voiture. → It’s my car.
  • C’est une bonne idée. → That’s a good idea.
  • C’est Paul. → That’s Paul.
  • C’est difficile. → It’s difficult.

🔹 Rule 2: Use “Il est” / “Elle est” + adjective only

👉 Use “Il est” (he/it is) or “Elle est” (she/it is) when you’re describing someone or something using only an adjective, no article.

✅ Examples:

  • Il est gentil. → He is nice.
  • Elle est intelligente. → She is smart.
  • Il est grand. → He is tall.
  • Elle est française. → She is French.

🧠 Think of it this way:
C’est gentille = wrong (has no article)
Elle est gentille = correct!


🔁 Side-by-side comparison

EnglishCorrect in FrenchWhy?
He is a teacher✅ C’est un professeurNoun with article
He is nice✅ Il est gentilAdjective only
That’s my friend✅ C’est mon amiPossessive + noun
She is tired✅ Elle est fatiguéeAdjective only
It’s difficult✅ C’est difficileGeneral idea

⚠️ Common mistakes

Il est un professeur
C’est un professeur

C’est fatiguée
Elle est fatiguée

💡 If there’s an article (un, une, le, la…) → use “C’est”
If it’s just an adjective → use “Il est” or “Elle est”


✨ Grammar tip: What about professions?

Sometimes both “C’est un professeur” and “Il est professeur” are correct — but they’re used differently.

FrenchEnglish translationWhen to use it
C’est un professeur.He’s a teacherTo introduce someone (with article)
Il est professeur.He is a teacherTo describe someone already known

💡 In French, when you use “Il est” + profession, you don’t use an article.
It’s treated like an adjective.

So:

  • C’est un professeur. → You’re saying who he is.
  • Il est professeur. → You’re describing what he does.

🧪 Quick practice – Choose the correct version:

  1. _ une voiture rouge.
  2. _ française.
  3. _ mon frère.
  4. _ fatigué.
  5. _ une bonne idée.

✅ Show answers

  1. C’est une voiture rouge.
  2. Elle est française.
  3. C’est mon frère.
  4. Il est fatigué.
  5. C’est une bonne idée.

🟢 Final tip

Still not sure? When in doubt:

  • If there’s an article, use “C’est”
  • If it’s just an adjective, use “Il est” or “Elle est”
  • For professions:
    “C’est un médecin” (to introduce)
    “Il est médecin” (to describe)

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