ralentir — French conjugation

to slow down

Frequency#665Regular

Indicative

Present (Présent) Regular

Use the présent for habits, what is true now, and what is about to happen soon. A single set of endings covers what English often splits into “I speak” and “I am speaking”.

Elle parle arabe et français.

PronounFrenchEnglish
jeralentisI slow down
turalentisyou slow down
il/elleralentithe/she/it slows down
nousralentissonswe slow down
vousralentissezyou (pl.) slow down
ils/ellesralentissentthey slow down

Simple past (Passé simple) Regular

The passé simple narrates completed past events in a literary or very formal style. In everyday conversation people use the passé composé instead, so you mostly meet this form in books and journalism.

Ils virent le roi s'approcher.

PronounFrenchEnglish
jeralentisI slowed down
turalentisyou slowed down
il/elleralentithe/she/it slowed down
nousralentîmeswe slowed down
vousralentîtesyou (pl.) slowed down
ils/ellesralentirentthey slowed down

Imperfect (Imparfait) Regular

The imparfait describes ongoing or repeated past actions and sets the background — how things were, what used to happen, weather, feelings. The passé composé, by contrast, marks single completed events.

Quand j'étais petit, j'allais souvent à la piscine.

PronounFrench
jeralentissais
turalentissais
il/elleralentissait
nousralentissions
vousralentissiez
ils/ellesralentissaient

Conditional (Conditionnel) Regular

The conditionnel is for polite questions and requests, “would”-type hypotheticals, and what someone said would happen. It is also the usual consequent clause in si + imparfait → conditionnel patterns.

Pourriez-vous répéter, s'il vous plaît ?

PronounFrenchEnglish
jeralentiraisI would slow down
turalentiraisyou would slow down
il/elleralentiraithe/she/it would slow down
nousralentirionswe would slow down
vousralentiriezyou (pl.) would slow down
ils/ellesralentiraientthey would slow down

Future (Futur) Regular

The futur is for future plans and objective predictions. In speech, aller + infinitive is often clearer for the immediate future, while the simple future is common for facts further ahead or in writing.

Demain, nous dînerons chez eux.

PronounFrenchEnglish
jeralentiraiI will slow down
turalentirasyou will slow down
il/elleralentirahe/she/it will slow down
nousralentironswe will slow down
vousralentirezyou (pl.) will slow down
ils/ellesralentirontthey will slow down

Present perfect (Passé composé) Regular

The passé composé is the main spoken past for completed, bounded actions (often with a time adverb). Use avoir with most verbs; être is required for a fixed group of motion/inchange and all pronominal verbs, with participle agreement when necessary.

Elle est venue tôt, puis elle a téléphoné.

PronounFrenchEnglish
jej'ai ralentiI have slowed down
tutu as ralentiyou have slowed down
il/elleil/elle a ralentihe/she/it has slowed down
nousnous avons ralentiwe have slowed down
vousvous avez ralentiyou (pl.) have slowed down
ils/ellesils/elles ont ralentithey have slowed down

Pluperfect (Plus-que-parfait) Regular

The plus-que-parfait is the “earlier past”: one action was already over before another past moment. It answers “had already” when a story is anchored in a past time.

Déjà, il avait fini quand je suis arrivé.

PronounFrenchEnglish
jej'avais ralentiI had slowed down
tutu avais ralentiyou had slowed down
il/elleil/elle avait ralentihe/she/it had slowed down
nousnous avions ralentiwe had slowed down
vousvous aviez ralentiyou (pl.) had slowed down
ils/ellesils/elles avaient ralentithey had slowed down

Conditional perfect (Conditionnel passé) Regular

The conditionnel passé states what would have been true, plans that failed, and unreal past if-clauses (often with si + plus-que-parfait in the apodose).

J'aurais dit oui, mais c'était impossible.

PronounFrench
jej'aurais ralenti
tutu aurais ralenti
il/elleil/elle aurait ralenti
nousnous aurions ralenti
vousvous auriez ralenti
ils/ellesils/elles auraient ralenti

Future perfect (Futur antérieur) Regular

The futur antérieur marks an action that will be finished before a later future moment (by then I will have…). It can also suggest a conjecture about a recent past fact in formal or literary use.

D'ici samedi, j'aurai lu le rapport.

PronounFrenchEnglish
jej'aurai ralentiI will have slowed down
tutu auras ralentiyou will have slowed down
il/elleil/elle aura ralentihe/she/it will have slowed down
nousnous aurons ralentiwe will have slowed down
vousvous aurez ralentiyou (pl.) will have slowed down
ils/ellesils/elles auront ralentithey will have slowed down

Subjunctive

Present subjunctive (Subjonctif présent) Regular

The present subjunctive appears in subordinate clauses after desire, doubt, fear, need, and many impersonals, usually when the subject of the subordinate is different. Learn common triggers: il faut que, je veux que, je doute que…

Il faut qu'il parte avant midi.

PronounFrench
jeralentisse
turalentisses
il/elleralentisse
nousralentissions
vousralentissiez
ils/ellesralentissent

Imperfect subjunctive (Subjonctif imparfait) Regular

The imparfait du subjonctif is a literary and formal past subjunctive. In modern speech, the present subjunctive usually replaces it for the same meaning.

Bien qu'il fût fatigué, il continua.

PronounFrench
jeralentisse
turalentisses
il/elleralentît
nousralentissions
vousralentissiez
ils/ellesralentissent

Other forms

Imperative (Impératif) Regular

The imperative is for direct orders and advice to tu, nous, and vous. For many -er verbs, the tu form drops the final -s of the present (parle!); negatives use the subjunctive-like forms in practice.

Fermons la porte, s'il vous plaît !

PronounFrench
turalentis
nousralentissons
vousralentissez