Compare the same quality across two things
Put plus, moins, or aussi before the adjective and introduce the comparison target with que. The adjective still agrees with what it describes. Choose the quality first: whether one option is cheaper, quieter, or faster can support different decisions, even about the same two objects. A comparative does not claim that an item has the quality absolutely.
A comparison needs an identifiable basis. Saying a room is quieter than another room does not tell the listener whether either is quiet enough for studying. Add a real purpose when using comparisons to make a decision. Grammatically, the compared adjective still describes its own noun; the noun in the comparison target does not control that adjective’s agreement. This becomes visible when two nouns have different genders or numbers in the same sentence.
Cette chambre est plus calme que l’autre.
This room is quieter than the other one.
Plus compares the adjective and que introduces the other room.
Ces rues sont moins larges.
These streets are less wide.
The adjective remains feminine plural after the comparison marker.
Express equality with the right pattern
For an adjective or adverb, equality uses aussi and que. A quantity needs autant instead. English as can hide this difference. Decide whether you are comparing a property, such as height, or an amount, such as the number of books, before selecting the word.
An equality comparison does not need to assert that the two things are identical in every respect. Two rooms can be equally quiet but different in size or price. The grammar limits the claim to the quality named. When producing your own sentence, change just one quality first, then make a second sentence about a different quality. This helps separate linguistic accuracy from an unsupported claim that two real alternatives are generally equivalent.
Elle est aussi grande que sa sœur.
She is as tall as her sister.
A quality is compared with aussi.
Il court aussi vite que moi.
He runs as fast as I do.
The adverb vite takes aussi in an equality comparison.
Keep de before a compared quantity
When comparing amounts of a noun, use plus de, moins de, or autant de before that noun. The quantity construction controls the noun phrase, so do not insert an ordinary indefinite article where de is required. Before a vowel, de elides. Plural count nouns and mass nouns can both appear.
The quantity word belongs to the noun phrase and introduces an amount. If a definite set has already been specified, another construction may be needed to refer to more of those particular items. The examples here use ordinary amounts of books and water, so the basic de pattern is appropriate. Keep count and mass meanings clear, even though French can use the same comparison framework for both types of noun.
J’ai plus de livres que toi.
I have more books than you.
The noun amount follows plus de.
Nous avons autant d’eau que vous.
We have as much water as you.
Autant de expresses an equal amount, and de elides before eau.
Decide what more modifies
Compare how many books you and your friend have.
- The comparison concerns an amount of a noun.
- Choose plus de livres, not the adjective pattern, which has no de.
- Introduce the comparison target with que and a stressed pronoun.
J’ai plus de livres que toi.
Compare actions without inserting a noun marker
A verb can itself be compared: someone works more or sleeps less. In that case, there is no following noun requiring de. If an adverb specifies how the action happens, compare that adverb. Distinguishing more work from working more helps prevent a mechanical translation of every English more into the same phrase.
A phrase describing how an action is done can look close to a phrase describing how much of it is done. Working more refers to amount or frequency; working more quickly refers to manner. Ask which question your sentence answers before choosing the final words. In a practical exchange, specify the comparison target if it is not obvious. A grammatically complete comparison can still leave a listener unsure what standard you are using.
Je travaille plus que lui.
I work more than he does.
The comparison modifies the verb, with no noun after plus.
Elle parle moins vite que moi.
She speaks less quickly than I do.
The comparison applies to the adverb vite.
Choose meilleur or mieux by function
Bon has the comparative meilleur, an adjective that agrees with its noun. Bien has the comparative mieux, an adverb that does not take feminine or plural endings. Ask whether the sentence evaluates a thing or the manner or result of an action. Avoid adding plus to these ordinary irregular comparatives.
The adjective and adverb distinction remains important in superlatives. A dish named by a feminine noun can be la meilleure, while a person can perform an action le mieux. The latter does not take a feminine form simply because the performer is a woman. Some uses of worse have additional stylistic choices in French, so this lesson concentrates on the common choice between meilleur and mieux for better rather than pretending every English comparative maps to one invariant French form.
Cette soupe est meilleure.
This soup is better.
The adjective agrees with feminine soupe.
Elle chante mieux.
She sings better.
The adverb describes the singing and does not agree with the subject.
Separate quality from performance
Say a singer sings better, then that her new song is better.
- Singing is an action, so use the adverb mieux.
- Chanson is a feminine noun, so use the adjective meilleure.
- Neither ordinary comparative needs plus.
Compare your reasoning
Elle chante mieux. Sa nouvelle chanson est meilleure.
Select an extreme within a set
A superlative combines a definite article with plus or moins and an adjective. The article and adjective reflect the noun being described. Name the relevant set when the listener needs it. Saying a room is the quietest has a different scope from saying it is quieter than one other room.
The comparison set determines the strength of a superlative. The cheapest ticket among three options is a narrower claim than the cheapest ticket available anywhere. French often makes the set explicit with a following phrase. In your own descriptions, name that set when the listener could misunderstand it. This is a meaning check as well as a grammar check: agreement can be perfect while the sentence still overstates what you actually know.
C’est la chambre la plus calme de l’hôtel.
It is the quietest room in the hotel.
The feminine noun determines la in the superlative.
Ce sont les billets les moins chers.
These are the least expensive tickets.
The plural noun takes the plural article les, and the adjective agrees in the plural.
References for this explanation
Use stressed pronouns for a clear comparison target
After que in a short comparison, a pronoun such as moi, toi, or lui can name the comparison target. If there is ambiguity, spell out the clause. Negation can deny equality without identifying the size of the difference. Read what a comparison entails rather than treating it as a numerical measurement.
A short comparison with a pronoun can occasionally leave its underlying relationship ambiguous, just as English comparisons can. Expanding the comparison into a full clause is a useful repair when clarity matters. For the beginner examples here, the surrounding sentence makes the intended relationship clear. After producing a short comparison, restate its meaning in your own words and check whether you compared the intended people, objects, actions, or quantities rather than a nearby but different element.
Il est plus grand que moi.
He is taller than I am.
The comparison target is the stressed pronoun moi.
Ce café n’est pas aussi bon que l’autre.
This coffee is not as good as the other one.
The negative denies equality of quality in this comparison.
Notice the difference
Common mistakes
Use que, not de, in an adjective comparison
Instead ofCette chambre est plus calme de l’autre.
For this meaningCette chambre est plus calme que l’autre.
This ordinary adjective comparison uses que, not de. Plus compares the adjective and que introduces the other room.
Do not add de before a compared adverb
Instead ofElle parle moins de vite que moi.
For this meaningElle parle moins vite que moi.
An adverb is not a noun amount introduced by de. The comparison applies to the adverb vite.
Make the superlative article agree with the noun
Instead ofC’est la chambre le plus calme de l’hôtel.
For this meaningC’est la chambre la plus calme de l’hôtel.
The superlative article does not match the feminine noun here. The feminine noun determines la in the superlative.
From understanding to using
Make your own example.
Try these without answer choices. Say your answer aloud or write it below, then compare your reasoning with the model.
Your turn 1
Compare two rooms: say the first is quieter but the second is less expensive.
Compare with a model
La première chambre est plus calme, mais la deuxième est moins chère.
The first room is quieter, but the second is less expensive.
Both comparisons use adjectives that agree with chambre, a feminine noun.
- Did you compare two different qualities?
- Is the price adjective feminine?
Your turn 2
Say that you have as many books as your friend but read more slowly.
Compare with a model
J’ai autant de livres que toi, mais je lis moins vite.
I have as many books as you, but I read more slowly.
The noun amount uses autant de; the manner comparison uses moins directly before the adverb.
- Does the amount include de?
- Did you avoid de before the adverb?
Put it into practice
Make the next choice.
Choose a response and learn why it works. Your score reflects your first answer to each question. You can revisit anything you miss.
Choose an answer, then open the explanation to check your reasoning.
Question 1
Choose the sentence for this message: This room is quieter than the other one.
- Cette chambre est plus calme que l’autre.
- Cette chambre est plus calme de l’autre.
Check the answer
Answer: Cette chambre est plus calme que l’autre.
Cette chambre est plus calme que l’autre.: Plus compares the adjective and que introduces the other room.
Cette chambre est plus calme de l’autre.: This ordinary adjective comparison uses que, not de.
Question 2
Choose the sentence for this message: These streets are less wide.
- Ces rues sont moins large.
- Ces rues sont moins larges.
Check the answer
Answer: Ces rues sont moins larges.
Ces rues sont moins large.: Comparison does not remove adjective agreement.
Ces rues sont moins larges.: The adjective remains feminine plural after the comparison marker.
Question 3
Choose the sentence for this message: She is as tall as her sister.
- Elle est aussi grande que sa sœur.
- Elle est autant grande que sa sœur.
Check the answer
Answer: Elle est aussi grande que sa sœur.
Elle est aussi grande que sa sœur.: A quality is compared with aussi.
Elle est autant grande que sa sœur.: Autant is not used directly before this adjective.
Question 4
Choose the sentence for this message: He runs as fast as I do.
- Il court aussi vite de moi.
- Il court aussi vite que moi.
Check the answer
Answer: Il court aussi vite que moi.
Il court aussi vite de moi.: The comparison target is introduced by que.
Il court aussi vite que moi.: The adverb vite takes aussi in an equality comparison.
Question 5
Choose the sentence for this message: I have more books than you.
- J’ai plus de livres que toi.
- J’ai plus des livres que toi.
Check the answer
Answer: J’ai plus de livres que toi.
J’ai plus de livres que toi.: The noun amount follows plus de.
J’ai plus des livres que toi.: The ordinary quantity comparison does not use des here.
Question 6
Choose the sentence for this message: We have as much water as you.
- Nous avons aussi d’eau que vous.
- Nous avons autant d’eau que vous.
Check the answer
Answer: Nous avons autant d’eau que vous.
Nous avons aussi d’eau que vous.: Aussi does not form this noun quantity pattern.
Nous avons autant d’eau que vous.: Autant de expresses an equal amount, and de elides before eau.
Question 7
Choose the sentence for this message: I work more than he does.
- Je travaille plus que lui.
- Je travaille plus de que lui.
Check the answer
Answer: Je travaille plus que lui.
Je travaille plus que lui.: The comparison modifies the verb, with no noun after plus.
Je travaille plus de que lui.: No noun quantity follows, so de is misplaced.
Question 8
Choose the sentence for this message: She speaks less quickly than I do.
- Elle parle moins de vite que moi.
- Elle parle moins vite que moi.
Check the answer
Answer: Elle parle moins vite que moi.
Elle parle moins de vite que moi.: An adverb is not a noun amount introduced by de.
Elle parle moins vite que moi.: The comparison applies to the adverb vite.
Question 9
Choose the sentence for this message: This soup is better.
- Cette soupe est meilleure.
- Cette soupe est plus bonne.
Check the answer
Answer: Cette soupe est meilleure.
Cette soupe est meilleure.: The adjective agrees with feminine soupe.
Cette soupe est plus bonne.: Use the ordinary irregular comparative meilleure here.
Question 10
Choose the sentence for this message: She sings better.
- Elle chante meilleure.
- Elle chante mieux.
Check the answer
Answer: Elle chante mieux.
Elle chante meilleure.: An agreeing adjective cannot replace the adverb in this construction.
Elle chante mieux.: The adverb describes the singing and does not agree with the subject.
Question 11
Choose the sentence for this message: It is the quietest room in the hotel.
- C’est la chambre la plus calme de l’hôtel.
- C’est la chambre le plus calme de l’hôtel.
Check the answer
Answer: C’est la chambre la plus calme de l’hôtel.
C’est la chambre la plus calme de l’hôtel.: The feminine noun determines la in the superlative.
C’est la chambre le plus calme de l’hôtel.: The superlative article does not match the feminine noun here.
Question 12
Choose the sentence for this message: These are the least expensive tickets.
- Ce sont les billets le moins cher.
- Ce sont les billets les moins chers.
Check the answer
Answer: Ce sont les billets les moins chers.
Ce sont les billets le moins cher.: The superlative needs plural agreement for the tickets.
Ce sont les billets les moins chers.: The plural noun takes the plural article les, and the adjective agrees in the plural.
Question 13
Choose the sentence for this message: He is taller than I am.
- Il est plus grand que moi.
- Il est plus grand que je.
Check the answer
Answer: Il est plus grand que moi.
Il est plus grand que moi.: The comparison target is the stressed pronoun moi.
Il est plus grand que je.: A bare subject pronoun is not used in this short comparison.
Question 14
Choose the sentence for this message: This coffee is not as good as the other one.
- Ce café n’est pas autant bon que l’autre.
- Ce café n’est pas aussi bon que l’autre.
Check the answer
Answer: Ce café n’est pas aussi bon que l’autre.
Ce café n’est pas autant bon que l’autre.: An adjective requires aussi, not autant.
Ce café n’est pas aussi bon que l’autre.: The negative denies equality of quality in this comparison.
Keep the conversation going
What to practice next
Compare two real choices using one quality, one quantity, and one action. State which set any superlative refers to. In the choice challenge, commit to one answer before opening feedback. Explain the rejected sentence, then retry missed questions. Return tomorrow and write a fresh example without looking at the models.
By Loquus ·
Sources
- University of Texas, Tex’s French Grammar: Adjective comparisons
- University of Texas, Tex’s French Grammar: Adjectives: formation and placement
- University of Texas, Tex’s French Grammar: Gender: masculine and feminine
- University of Texas, Tex’s French Grammar: Adverb comparisons
- University of Texas, Tex’s French Grammar: Expressions of quantity
- University of Texas, Tex’s French Grammar: Partitive articles
- University of Texas, Tex’s French Grammar: Number: singular and plural
- University of Texas, Tex’s French Grammar: Contractions with à and de
- University of Texas, Tex’s French Grammar: Transitive and intransitive constructions
- University of Texas, Tex’s French Grammar: Bon, meilleur, bien, and mieux
- University of Texas, Tex’s French Grammar: Adjective superlatives
- University of Texas, Tex’s French Grammar: Disjunctive pronouns
- University of Texas, Tex’s French Grammar: Basic negation
Learning research behind the practice
Worked examples, retrieval practice, and later review inform the activities. These studies do not establish the effectiveness of this specific lesson.