French Verb Conjugations
| Present | Imperfect | Future | Conditional | Subjunctive | Imperfect subj. | |||
| je | contamine | contaminais | contaminerai | contaminerais | contamine | contaminasse | ||
| tu | contamines | contaminais | contamineras | contaminerais | contamines | contaminasses | ||
| il | contamine | contaminait | contaminera | contaminerait | contamine | contaminât | ||
| nous | contaminons | contaminions | contaminerons | contaminerions | contaminions | contaminassions | ||
| vous | contaminez | contaminiez | contaminerez | contamineriez | contaminiez | contaminassiez | ||
| ils | contaminent | contaminaient | contamineront | contamineraient | contaminent | contaminassent | ||
| Passé composé | Past perfect | Future perfect | Past conditional | Past subjunctive | Pluperfect subj. | |||
| j’ | ai contaminé | avais contaminé | aurai contaminé | aurais contaminé | aie contaminé | eusse contaminé | ||
| tu | as contaminé | avais contaminé | auras contaminé | aurais contaminé | aies contaminé | eusses contaminé | ||
| il | a contaminé | avait contaminé | aura contaminé | aurait contaminé | ait contaminé | eût contaminé | ||
| nous | avons contaminé | avions contaminé | aurons contaminé | aurions contaminé | ayons contaminé | eussions contaminé | ||
| vous | avez contaminé | aviez contaminé | aurez contaminé | auriez contaminé | ayez contaminé | eussiez contaminé | ||
| ils | ont contaminé | avaient contaminé | auront contaminé | auraient contaminé | aient contaminé | eussent contaminé | ||
| Passé simple | Past anterior | Imperative | Participles | |||||
| je / j’ | contaminai | eus contaminé | (tu) | contamine | Present | contaminant | ||
| tu | contaminas | eus contaminé | (nous) | contaminons | Past | contaminé | ||
| il | contamina | eut contaminé | (vous) | contaminez | Perfect | ayant contaminé | ||
| nous | contaminâmes | eûmes contaminé | Past imperative | |||||
| vous | contaminâtes | eûtes contaminé | (tu) | aie contaminé | Past infinitive | |||
| ils | contaminèrent | eurent contaminé | (nous) | ayons contaminé | avoir contaminé | |||
| (vous) | ayez contaminé | |||||||
Contaminer is a regular -er verb.


The French lessons and comprehension exercises on this site are ranked according to the Common European Framework of Reference for Languages (CEFR), which describes six levels of language proficiency.
When a word ending in a normally silent consonant is followed by a vowel or h muet, that consonant might be transferred onto the next word. This is called a liaison and it’s one of the aspects of French pronunciation that can make it difficult to determine where one word ends and the next begins.
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