22/04/2011
The Unchanging: A Guide to French Invariable Words
French, with its intricate rules of agreement, can sometimes feel like a linguistic puzzle. Among the many facets of French grammar, invariable words stand out as a particularly fascinating, and at times, perplexing category. You might find yourself pondering: should it be "ils sont parmi nous" or "ils sont parmis nous"? Is it correct to ask if the answers are "justes"? Or perhaps you're unsure whether bears are "marron" or "marrons"? To clear up these common queries and provide a solid understanding, this article will illuminate the nature of invariable words, helping you to identify and use them correctly every time. Ready to dive in? Let's go! 🚀
What Exactly Are Invariable Words? 🤔
Before we delve deeper, let's establish a clear understanding: what precisely is an invariable word? It's quite straightforward! An invariable word is a word that never changes its form, regardless of the gender or number of the words it relates to within a sentence. This means its spelling remains constant, no matter how you use it! Consequently, these words do not take an '-s' or '-x' for the plural, nor an '-e' for the feminine form, and certainly not '-es' for the feminine plural.

Important Note: The fact that invariable words do not acquire an '-e', '-s', or '-x' at the end of their root does not preclude them from naturally ending in one of these three letters! These words are often essential building blocks in sentence construction, so much so that they are also referred to as "mots outils" (tool words). Therefore, it is absolutely crucial to recognise them and know how to spell them correctly. Here at Sherpas, we aim to equip you with the skills to spot them more easily, ensuring you never make a mistake again!
The Grammatical Natures of Invariable Words 🍃
Identifying invariable words is not as daunting as it might seem, as they all belong to well-defined grammatical categories. But first, what is the "nature" of a word? The nature of a word, or its grammatical class, is essentially its identity. Words sharing the same identity are grouped into the same grammatical category. We can determine this through three criteria: semantics (the meaning of the word), morphology (whether it changes in gender or number), and syntax (its position within the sentence). It's worth noting that a single word can sometimes belong to two different grammatical categories.
In total, there are nine grammatical categories:
- Verbs
- Determiners
- Adjectives
- Adverbs
- Conjunctions
- Nouns
- Pronouns
- Prepositions
- Interjections
- Onomatopoeias
The five categories we will focus on here consistently share the same morphological characteristic: their invariability! This makes perfect sense, given that this article is dedicated to invariable words. We will differentiate them further based on their semantic and syntactic criteria. 👍
The Five Main Invariable Categories
Adverbs 📍
An adverb adds an extra layer of meaning to a verb, another adverb, or even an entire sentence. For instance, in "il révise méthodiquement" (he revises methodically), "méthodiquement" modifies the verb "réviser". In "il révise trop rapidement" (he revises too quickly), "trop" modifies the adverb "rapidement". And in "évidemment, il révise aujourd'hui" (obviously, he revises today), "évidemment" modifies the entire sentence.
Generally, an adverb is placed before the element it modifies, unless it is modifying a verb, in which case it is often found after the verb or its complement. Adverbs can be further classified based on what they indicate:
- Adverbs of time: specify the moment (e.g., aujourd'hui, demain, jamais, encore).
- Adverbs of place: specify the location (e.g., ici, là, dehors, dedans).
- Adverbs of manner: express a way of doing, saying, or being (e.g., lentement, rapidement, calmement).
- Adverbs of quantity: express an amount (e.g., beaucoup, peu, trop, assez).
- Adverbs of negation: express negation and nuance its meaning (e.g., ne... pas, jamais).
Conjunctions 📍
A conjunction is a small word that serves to introduce other words or clauses. It is always placed between the two terms or groups it connects. There are two main types of conjunctions:
- Coordinating conjunctions: connect two elements of equal grammatical rank (e.g., mais, ou, et, donc, or, ni, car).
- Subordinating conjunctions: connect a dependent clause to an independent clause (e.g., que, si, quand, parce que, bien que).
It's worth noting that subordinating conjunctions can sometimes be formed by more than one word, often a conjunction followed by another element like an adverb or a participle. For example, "que" is a simple subordinating conjunction, while "alors que" is formed from "que" and the adverb "alors".
Prepositions 📍
A preposition introduces a phrase, most commonly a noun phrase. It is always placed before this group of words, hence its name derived from the prefix "pré" (meaning before) and "position". Prepositions, much like some subordinating conjunctions, can also be composed of multiple words (e.g., à cause de, afin de).
Common prepositions include: à, dans, par, pour, en, vers, avec, de, sans, sous, sur, parmi, chez.
Interjections 📍
An interjection is used within a sentence or on its own to express an emotion or a sudden feeling. Its placement in a sentence is quite flexible; it can appear almost anywhere and does not have a fixed position within a clause.
Examples include: Ah!, Ouf!, Zut!, Hélas!, Aïe!. Interjections are often followed by an exclamation mark to convey the emotion they represent.
The Special Case of Invariable Adjectives ⚠️
While most adjectives in French agree in gender and number with the noun they describe, there is a specific subgroup of adjectives that remain invariable. These invariable adjectives typically fall into three categories:
- Those derived from slang.
- Compound colour adjectives, or those directly borrowed from nouns representing colours.
- Anglicisms (words borrowed from English).
However, it's crucial to be aware of exceptions, particularly with colour adjectives derived from nouns. The following colour adjectives, despite their origin, are considered variable: rose, pourpre, mauve, fauve, écarlate, and incarnat. This means they will agree with the noun they modify.
A key distinction: If these words are used as nouns, they become variable. For example, "les marrons sont chauds" (chestnuts are hot), but "elle a des robes marron" (she has brown dresses).
A Handy List of Invariable Words to Know! 📄
To help you more easily identify invariable words, here is a non-exhaustive list of commonly used terms:
Adverbs 👀
- Adverbs of time: aujourd'hui, demain, après, jamais, encore, parfois, autrefois, tôt, aussitôt, déjà, maintenant, désormais, durant, soudain...
- Adverbs of place: ici, là, là-bas, devant, derrière, dessus, auprès, à l'arrière, chez, parmi, autour, dehors, dedans, partout, loin, près, entre, juste...
- Adverbs of manner: gentiment, sagement, calmement, rapidement, lentement, joyeusement, paisiblement, énormément, évidemment, ne...
- Adverbs of quantity: trop, assez, peu, beaucoup, moins, davantage, tant, autant, tellement, guère, plus, environ...
- Adverbs of negation: ne... pas, plus, jamais...
Note on negation: Adverbs of negation often work in pairs, typically with "ne". The word "ne" itself can function as an adverb of manner and can sometimes be used independently of negation, as in "allez-y avant qu'il ne vienne" (go before he comes). While this usage of "ne" is less common in modern spoken French, it's still valuable to recognise in written contexts.
Prepositions 👀
À, dans, par, pour, en, vers, avec, de, sans, sous, sur, parmi, chez, à cause de, afin de, de manière à...
A useful mnemonic for some of the most common prepositions is: "Adam part pour Envers avec deux-cent sous" (Adam leaves for Envers with two hundred sous).
Conjunctions 👀
- Coordinating conjunctions: Mais, ou, et, donc, or, ni, car. (Remember the acronym "Mais où est donc Ornicar?")
- Subordinating conjunctions: Comme, si, quand, puisque, parce que, afin que, dès que, de sorte que, vu que, alors que...
Interjections 👀
Ah! Ouf! Youpi! Zut! Ho! Hop! Hourra! Hue! Aïe! Hélas! ... As they express emotion, interjections are almost always followed by an exclamation mark.
Adjectives 👀
Marron, orange, turquoise, vidéo, punk, laser, grattis, furax, michto...
Remember: if these words are used as nouns, they become variable. For example, "les marrons sont chauds" (chestnuts are hot), but "elle a des robes marron" (she has brown dresses).
Quick Exercises to Test Your Understanding! ✍️
To help you confidently write invariable words correctly, here are two short exercises:
Exercise 1: Identify the Invariable Words! 👀
In the following sentences, find all the invariable words:
- "Hélas! J’ai perdu beaucoup de points dans les exercices 3 et 4."
- "Nous allons chez toi après l’école."
- "Il pleut souvent en automne."
- "Le chien est resté dehors toute la nuit."
- "Bien que fatiguée, elle travaille encore."
- "Il a acheté un t-shirt turquoise."
Exercise 2: Agree or Remain Invariable? 🤗
Complete the following sentences with the correct form (variable or invariable) of the word in parentheses:
- "Les fleurs (orange) dans le jardin sont magnifiques."
- "Ils ont travaillé très (dur) toute la journée."
- "Elle a acheté une robe (rose)."
- "Aujourd’hui, j’ai passé (trop) de temps à réviser ma leçon."
Corrections ✅
Correction for Exercise 1 ✔️
- Sentence 1: Hélas, beaucoup, dans, et
- Sentence 2: chez, après
- Sentence 3: souvent, en
- Sentence 4: dehors
- Sentence 5: Bien que, encore
- Sentence 6: turquoise
Correction for Exercise 2 ✔️
- "Les fleurs orange dans le jardin sont magnifiques." (Invariable: "orange" is a colour adjective derived from a noun.)
- "Ils ont travaillé très dur toute la journée." (Invariable: "dur" is an adverb.)
- "Elle a acheté une robe rose." (Variable: "rose", despite being a colour adjective derived from a noun, is an exception to the rule and agrees with "robe".)
- "Aujourd’hui, j’ai passé trop de temps à réviser ma leçon." (Invariable: "trop" is an adverb.)
There you have it! You now possess all the essential knowledge about invariable words to confidently tackle your French assignments. If you require further assistance with any other aspect of the French language, don't hesitate to book a lesson with one of our Sherpas tutors! See you soon!
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