Croire Conjugation in French: Complete Tables, Rules, and Expert Tips

Mastering the French verb croire (meaning to believe or to think) is essential for expressing thoughts, perspectives, convictions, and uncertainties. Classified as an irregular third-group verb ending in -re, croire presents distinctive stem shifts that frequently challenge French language learners.

This comprehensive guide provides full conjugation tables for croire, deconstructs its irregular patterns, clarifies the tricky Subjunctive vs. Indicative dilemma, and explains prepositional nuances like croire à vs. croire en.


1. The Core Stem Mutation: The "I" to "Y" Shift

Understanding the phonetics of croire makes learning its forms significantly easier. The stem changes depending on the pronunciation of the following vowel:

  • When the ending contains a sounded vowel, the i becomes a y (nous croyons, vous croyez).
  • When the ending contains a silent "e", the root stays i (ils croient, je croie).

  • 2. Complete Conjugation Tables for Croire

    Present Indicative (Présent)

Used to state opinions, assumptions, and beliefs in everyday conversation.

Subject Pronoun Conjugation Pronunciation (IPA)
:--- :--- :---
Je crois /kʁwa/
Tu crois /kʁwa/
Il / Elle / On croit /kʁwa/
Nous croyons /kʁwa.jɔ̃/
Vous croyez /kʁwa.je/
Ils / Elles croient /kʁwa/

Note that je, tu, il, and ils all share the identical pronunciation /kʁwa/.

Compound Past (Passé Composé)

Croire takes the auxiliary verb avoir. Its past participle is the short irregular form cru.

  • J'ai cru (I believed)
  • Tu as cru
  • Il / Elle / On a cru
  • Nous avons cru
  • Vous avez cru
  • Ils / Elles ont cru
  • Imperfect (Imparfait)

The imperfect is constructed using the stem of nous in the present (croy-) plus regular imperfect endings. Pay attention to the double "i" sound in nous and vous.

  • Je croyais
  • Tu croyais
  • Il / Elle croyait
  • Nous croyions (spelled with both y and i)
  • Vous croyiez
  • Ils / Elles croyaient
  • Simple Future (Futur Simple) & Conditional (Conditionnel Présent)

For both tenses, drop the final -e from the infinitive to form the root stem: croir-.

Present Subjunctive (Subjonctif Présent)

Subject Future Tense Conditional Tense
:--- :--- :---
Je croirai croirais
Tu croiras croirais
Il / Elle croira croirait
Nous croirons croirions
Vous croirez croiriez
Ils / Elles croiront croiraient

Subjunctive forms mirror the present indicative stem alternations.

  • Que je croie
  • Que tu croies
  • Qu'il / elle croie
  • Que nous croyions
  • Que vous croyiez
  • Qu'ils / elles croient
  • Imperative (Impératif)

  • (Tu) Crois (3rd group verb, keeps the 's')
  • (Nous) Croyons
  • (Vous) Croyez

  • 3. High-Level Grammar: Subjunctive vs. Indicative with « Croire »

One of the most heavily tested topics in French grammar certifications (like DELF B1/B2) is determining which mood follows the conjunction croire que.

1. Affirmative Statements -> Indicative Mood

  • Je crois qu'il est honnête. (I believe he is honest.)

When making an affirmative statement, you state a perspective with relative confidence:

2. Negative Statements -> Subjunctive Mood

  • Je ne crois pas qu'il soit honnête. (I do not believe he is honest.)

Negating belief introduces doubt into the dependent clause, demanding the subjunctive:

3. Inverted Questions -> Subjunctive Mood

  • Croyez-vous qu'elle puisse réussir ? (Do you think she can succeed?)
  • Formal question inversion implies uncertainty:


    4. Preposition Guide: « Croire à » vs. « Croire en »

Choosing the incorrect preposition changes your intended meaning entirely:

  • Croire à + noun: Used for believing in the existence of abstract ideas, legends, or events (croire au destin - to believe in destiny; croire au Père Noël - to believe in Santa Claus).
  • Croire en + person/concept: Implies faith, trust, or confidence (croire en Dieu - to believe in God; croire en soi - to believe in oneself).
  • Croire [Direct Object]: Means believing someone's words (Je te crois - I believe you).

By practicing the stem changes and applying the mood rules for negative and interrogative structures, you will utilize the French verb croire with native-like accuracy.