Connaître, paraître: -ai- vs -ai ss - in plural forms
Third Group — -AÎTRE Verbs (The Connaître Model)
Some -aître verbs form a small but important irregular family in French.
The most common verbs are:
- connaître → to know
- apparaître → to appear
- paraître → to seem / appear
- disparaître → to disappear
These verbs are known for their radical change and accent pattern.
Why They Are Special
These verbs have a unique feature in the present tense:
- The stem changes slightly in singular forms
- An accent circonflexe (î) appears before the final t in the third person singular
Example:
- il connaît → he knows
This accent is purely orthographic, but it affects the visual recognition of the stem.
Conjugation of CONNAÎTRE (to know)
| Subject | Conjugation |
|---|---|
| je | connais |
| tu | connais |
| il / elle / on | connaît |
| nous | connaissons |
| vous | connaissez |
| ils / elles | connaissent |
- Singular stem = connaî- with accent in il/elle/on
- Plural stem = connaiss- (no accent circonflexe)
- Endings follow classic third-group rules: -s, -s, -t / -ons, -ez, -ent
Why This Pattern Matters
- It’s very common in spoken and written French
- The accent circonflexe is a visual clue for the singular third person
- It shows the principle of stem modification with accent for pronunciation/clarity
Key Takeaways
- Verbs in the -aître family modify the stem in singular forms.
- An accent circonflexe î appears in third-person singular: il connaît.
- Plural forms return to a more regular stem with ss before endings.
- Examples: connaître, apparaître, paraître, disparaître.
- Recognizing the accent pattern makes these irregulars easier to read and conjugate.
In the app, you will find interactive exercises and quizzes tailored for this intermediate level.
Practice French conjugation for free in the Croissant Verbs app
Quizzes and spaced repetition for every tense, for free on your phone—plus short grammar guides on our Learn hub.
