mousser — French conjugation
to foam (produce foam)
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.
| Pronoun | French | English |
|---|---|---|
| je | mousse | I foam |
| tu | mousses | you foam |
| il/elle | mousse | he/she/it foams |
| nous | moussons | we foam |
| vous | moussez | you (pl.) foam |
| ils/elles | moussent | they foam |
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.
| Pronoun | French | English |
|---|---|---|
| je | moussai | I foamed |
| tu | moussas | you foamed |
| il/elle | moussa | he/she/it foamed |
| nous | moussâmes | we foamed |
| vous | moussâtes | you (pl.) foamed |
| ils/elles | moussèrent | they foamed |
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.
| Pronoun | French |
|---|---|
| je | moussais |
| tu | moussais |
| il/elle | moussait |
| nous | moussions |
| vous | moussiez |
| ils/elles | moussaient |
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 ?
| Pronoun | French | English |
|---|---|---|
| je | mousserais | I would foam |
| tu | mousserais | you would foam |
| il/elle | mousserait | he/she/it would foam |
| nous | mousserions | we would foam |
| vous | mousseriez | you (pl.) would foam |
| ils/elles | mousseraient | they would foam |
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.
| Pronoun | French | English |
|---|---|---|
| je | mousserai | I will foam |
| tu | mousseras | you will foam |
| il/elle | moussera | he/she/it will foam |
| nous | mousserons | we will foam |
| vous | mousserez | you (pl.) will foam |
| ils/elles | mousseront | they will foam |
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.
| Pronoun | French | English |
|---|---|---|
| je | j'ai moussé | I have foamed |
| tu | tu as moussé | you have foamed |
| il/elle | il/elle a moussé | he/she/it has foamed |
| nous | nous avons moussé | we have foamed |
| vous | vous avez moussé | you (pl.) have foamed |
| ils/elles | ils/elles ont moussé | they have foamed |
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.
| Pronoun | French | English |
|---|---|---|
| je | j'avais moussé | I had foamed |
| tu | tu avais moussé | you had foamed |
| il/elle | il/elle avait moussé | he/she/it had foamed |
| nous | nous avions moussé | we had foamed |
| vous | vous aviez moussé | you (pl.) had foamed |
| ils/elles | ils/elles avaient moussé | they had foamed |
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.
| Pronoun | French |
|---|---|
| je | j'aurais moussé |
| tu | tu aurais moussé |
| il/elle | il/elle aurait moussé |
| nous | nous aurions moussé |
| vous | vous auriez moussé |
| ils/elles | ils/elles auraient moussé |
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.
| Pronoun | French | English |
|---|---|---|
| je | j'aurai moussé | I will have foamed |
| tu | tu auras moussé | you will have foamed |
| il/elle | il/elle aura moussé | he/she/it will have foamed |
| nous | nous aurons moussé | we will have foamed |
| vous | vous aurez moussé | you (pl.) will have foamed |
| ils/elles | ils/elles auront moussé | they will have foamed |
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.
| Pronoun | French |
|---|---|
| je | mousse |
| tu | mousses |
| il/elle | mousse |
| nous | moussions |
| vous | moussiez |
| ils/elles | moussent |
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.
| Pronoun | French |
|---|---|
| je | moussasse |
| tu | moussasses |
| il/elle | moussât |
| nous | moussassions |
| vous | moussassiez |
| ils/elles | moussassent |
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 !
| Pronoun | French |
|---|---|
| tu | mousse |
| nous | moussons |
| vous | moussez |