The verb partir belongs to the third group and is conjugated with the auxiliary être in compound tenses. In the present indicative, its peculiarity lies in a radical alternation between persons: the first three use a short base, while the next three revert to the long base. Understanding this mechanism allows one to remember the six forms without resorting to a memorized table.
Radical alternation in the present tense of the verb partir
The difficulty of the verb partir does not come from its endings, which remain standard for a third group verb. It comes from the radical that changes during conjugation.
In the three singular persons, the radical is reduced to par-: I leave, you leave, he leaves. The endings -s, -s, -t are identical to those of the majority of third group verbs (dormir, sentir, sortir).
In the three plural persons, the radical becomes part-: we leave, you leave, they leave. The endings -ons, -ez, -ent are those of almost all French verbs in the present.
This alternation of par- / part- is the only point to memorize. Once this mechanism is understood, it becomes possible to find the verb partir in the present on Liens Vers Emploi and to check that the logic also applies to verbs of the same family.
Complete conjugation of partir in the present indicative
Here are the six forms to know, grouped to highlight the division between singular and plural:
| Person | Form | Radical used |
|---|---|---|
| I | leave | par- |
| You | leave | par- |
| He / she / one | leaves | par- |
| We | leave | part- |
| You | leave | part- |
| They | leave | part- |
The t of the radical reappears as soon as the ending begins with a vowel or with a consonant that requires an additional syllable (-ons, -ez, -ent). In the singular, the consonantal endings (-s, -s, -t) absorb the t of the radical, which gives the impression that it disappears.
Verbs conjugated like partir: applying the same pattern
Partir is not an isolated case. Several third group verbs follow exactly the same pattern of alternation in the present. Identifying them helps to make the memorization effort worthwhile.
- Sortir: I go out, you go out, he goes out, we go out, you go out, they go out. The radical alternates between sor- and sort-.
- Dormir: I sleep, you sleep, he sleeps, we sleep, you sleep, they sleep. The same logic applies with dor- and dorm-.
- Sentir: I feel, you feel, he feels, we feel, you feel, they feel. The radical shifts from sen- to sent-.
- Servir: I serve, you serve, he serves, we serve, you serve, they serve. Alternation ser- / serv-.
The principle remains the same: in the singular, the last consonant of the radical drops. In the plural, it is retained because the ending allows it phonetically. Remembering this rule for one verb means mastering it for the entire series.
Avoiding confusion between present, future, and passé composé of partir
Learners often confuse I leave (present) with I will leave (simple future) or I left (passé composé). The confusion often arises from spoken language, where the contexts overlap.
Present with a near future value
In everyday French, a sentence like “I leave tomorrow” uses the present indicative to express a future action. This construction is grammatically correct, but it blurs the boundary between present and future for those learning conjugation. A reliable marker remains the verb form: I leave is always present, regardless of the temporal meaning of the sentence.
Passé composé with the auxiliary être
The passé composé of partir is constructed with être (I left, she left), which requires agreement of the past participle with the subject. In the present, no auxiliary intervenes. If the form contains “am”, “are”, or “is” in front of “left”, it is no longer the present.
A quick test to clear any doubt: replace partir with a first group verb (arrive, for example). If the sentence works with “I arrive”, the expected form is indeed the present. If it asks “I arrived”, it is the passé composé.
Three anchors to remember the conjugation of partir without a table
Rather than reciting the six forms in order, three anchor points are enough to reconstruct the conjugation at any time:
- The radical loses its last consonant in the singular (par-) and retains it in the plural (part-).
- The endings are regular for the third group: -s, -s, -t, -ons, -ez, -ent.
- The auxiliary être only appears in compound tenses. If the sentence contains neither “am” nor “are” nor “is”, the conjugated form is a simple tense.
Reconstructing rather than reciting allows one to find each form even after a long period without practice. This approach works for partir and for all verbs with radical alternation in the third group.