How to Conjugate "Maigrir" (to Lose Weight, Become Thin)

A Simple Verb Conjugation in French

You've lost weight and are excited to tell everyone... in French. What do you do? Use the verb maigrir, which means "to lose weight" or "become thin." The trick is that you need to conjugate maigrir in order to say "lost weight" or "am losing weight." A quick French lesson will show you how that's done.

Conjugations of the French Verb Maigrir

French verbs are a little tricky because there are more words to memorize than there are in English. That's because the verb ending changes with each subject pronoun as well as each tense. However, they do become easier with each new conjugation you learn.

Maigrir is a regular -ir verb and it follows a relatively common verb conjugation pattern. If you've worked with words like abolir (to abolish), établir (to establish), or many other verbs that end in -ir, then this should look familiar.

Using the table, pair the subject pronoun of your sentence with the appropriate tense. For instance, "I am losing weight" is "je maigris" while "we will become thin" is "nous maigrirons." Try putting these into simple sentences to make memorizing them a little easier.

Subject Present Future Imperfect
je maigris maigrirai maigrissais
tu maigris maigriras maigrissais
il maigrit maigrira maigrissait
nous maigrissons maigrirons maigrissions
vous maigrissez maigrirez maigrissiez
ils maigrissent maigriront maigrissaient

The Present Participle of Maigrir

The present participle of maigrir is maigrissant. This is a verb, of course, but in some contexts it can also be used as an adjective, gerund, or noun.

The Passé Composé and Past Participle

Another way to express the past tense in French is by using the passé composé. This simple construction makes use of the past participle maigri. You will also need to conjugate avoir (an auxiliary verb) to match your subject pronoun.

It comes together rather quickly. For example, "I lost weight" is "j'ai maigri" while "we lost weight" is "nous avons maigri."

More Simple Maigrir Conjugations to Learn

Beyond those verb forms, you may also need to use some of the following. When the action of losing weight is uncertain, you could use the subjunctive verb mood. In a similar fashion, if losing weight will only happen if something else (like exercise or diet) also happens, then you can turn to the conditional verb form.

It's likely that you will only encounter the passé simple and imperfect subjunctive forms when reading. These are literary verb forms and typically found in formal writing.

Subject Subjunctive Conditional Passé Simple Imperfect Subjunctive
je maigrisse maigrirais maigris maigrisse
tu maigrisses maigrirais maigris maigrisses
il maigrisse maigrirait maigrit maigrît
nous maigrissions maigririons maigrîmes maigrissions
vous maigrissiez maigririez maigrîtes maigrissiez
ils maigrissent maigriraient maigrirent maigrissent

In order to use maigrir in direct exclamations, demands, and requests, the imperative form is used. When doing so, skip the subject pronoun altogether. Rather than saying "tu maigris," simplify it to "maigris."

(tu) maigris
(nous) maigrissons
(vous) maigrissez