The verb partir belongs to the third group, a category that includes verbs with varied behaviors. Unlike the verbs of the second group (finir, choisir), partir does not follow the -issons model in the plural. This peculiarity leads to frequent errors, especially among middle school students and learners of French as a foreign language, who produce forms like “nous partissons” or “je partis” in the present indicative.
The challenge is not to memorize another table, but to understand the mechanism that governs this verb. Once the radical alternation is identified, the conjugation of the verb partir in the present becomes predictable.
Radical alternation in the singular and plural: the mechanism to remember
The main difficulty with partir lies in a phenomenon that grammarians call radical alternation. In the singular, the radical shortens. In the plural, it regains its full form.
| Person | Radical used | Ending | Conjugated form |
|---|---|---|---|
| I | par- | -s | je pars |
| You | par- | -s | tu pars |
| He/She | par- | -t | il part |
| We | part- | -ons | nous partons |
| You (formal/plural) | part- | -ez | vous partez |
| They | part- | -ent | ils partent |
In the singular, the radical par- loses the consonant t. This is what gives “je pars” and not “je parts”. The letter t of the infinitive reappears from the first person plural.
This alternation is not unique to partir. The verbs sortir, dormir, mentir, sentir, and servir follow exactly the same pattern. Learning this mechanism once allows for the correct conjugation of all these verbs from the third group ending in -ir.
To know how to conjugate partir in the present indicative, it is therefore enough to master this switch between short and complete radical.
<img src="https://www.renault-classique-utilitaires.com/wp-content/uploads/professeur-conjugaison-partir-tableau-classe-fr-scaled.webp" alt="Teacher writing the conjugation of the verb partir in the present on a blackboard in a classroom” class=”aligncenter” loading=”lazy” />
Distinguishing partir from the verbs of the second group: the -issons test
The most common confusion is treating partir as a second group verb. The -ir verbs of the second group (finir, grandir, réussir) insert the suffix -iss- between the radical and the ending in the plural: nous finissons, vous grandissez.
Partir does not belong to this family. We part, and not “nous partissons”. The absence of the suffix -iss- is the signal of a third group verb.
A reliable method to decide:
- Conjugate the verb in the first person plural (we) in the present
- If the form produces -issons (nous finissons), the verb is of the second group and takes the endings -is, -is, -it, -issons, -issez, -issent
- If the form does not contain -issons (nous partons, nous dormons, nous sortons), the verb is of the third group and takes the endings -s, -s, -t, -ons, -ez, -ent
This test works every time. It avoids the need to memorize lists of verbs by group.
Present endings for -ir verbs of the third group
The endings that partir takes in the present indicative are shared by a set of common verbs. Grouping them helps reduce the memorization effort.
The group partir, sortir, dormir, sentir, mentir, servir
All these verbs follow the same logic: shortened radical in the singular, complete radical in the plural. Here is the comparison:
| Person | Partir | Sortir | Dormir | Sentir |
|---|---|---|---|---|
| I | pars | sors | dors | sens |
| You | pars | sors | dors | sens |
| He/She | part | sort | dort | sent |
| We | partons | sortons | dormons | sentons |
| You (formal/plural) | partez | sortez | dormez | sentez |
| They | partent | sortent | dorment | sentent |
The pattern is identical in each column. A single rule covers six common everyday verbs. The radical loses its last consonant in the singular (par-, sor-, dor-, sen-), then regains it in the plural (part-, sort-, dorm-, sent-).
Fixed endings to remember
The endings themselves do not vary from one verb to another in this subgroup:
- Singular: -s, -s, -t (no exceptions for these verbs)
- Plural: -ons, -ez, -ent (endings common to the majority of French verbs in the present)
The only area of risk remains the singular, where one might be tempted to add a superfluous letter. “Je parts” with a t is a mistake: the ending -s is sufficient, the t of the radical has disappeared.
Partir in the present: common traps and points of vigilance
Two errors systematically recur in written work and exchanges.
The first concerns the auxiliary. Partir is conjugated with the auxiliary être in compound tenses (je suis parti, nous sommes partis). In the simple present, this question does not arise, but confusion sets in when a learner moves from the present to the passé composé without changing the auxiliary.
The second error relates to the syntactic construction. Partir is an intransitive verb. It cannot directly take a place complement without a preposition. “Je pars Paris” is incorrect. The correct form is “je pars à Paris” or “je pars pour Paris”. This syntactic constraint does not affect the conjugation, but it often accompanies errors in verb forms among learners who lack reference points on the overall functioning of the verb.
<img src="https://www.renault-classique-utilitaires.com/wp-content/uploads/eleve-revision-verbe-partir-cour-ecole-fr-scaled.webp" alt="Teen revising the conjugation of the verb partir on a grammar sheet in a schoolyard” class=”aligncenter” loading=”lazy” />
Remembering the alternation between par- / part- and applying the endings -s, -s, -t, -ons, -ez, -ent covers the entirety of the conjugation of partir in the present. This same reflex extends to sortir, dormir, mentir, sentir, and servir, making it one of the most valuable rules of French conjugation.
