Environment and ecology — French B1/B2

Gérondif, participe présent and adjectif verbal — three -ant forms you have to keep apart

Le gérondif, le participe présent et l'adjectif verbal

All three forms look identical and are built identically: take the verb in the nous form of the present tense, cut off -ons and add -ant. Nous polluons → polluant, nous finissons → finissant, nous prenons → prenant, nous faisons → faisant. There are exactly three irregulars: être → étant, avoir → ayant, savoir → sachant. The difference between the three is therefore not in how they are made but in what job they do — and the job decides both the spelling and whether the word agrees with anything. This is the heart of the problem for an English speaker: English has a single -ing form covering all three jobs at once (“polluting factories”, “by polluting the river”, “very polluting”), so your own language has never once forced you to choose. In French you must choose every time.

The GÉRONDIF is always « en + -ant » and always refers back to the SUBJECT of the main clause. It expresses simultaneity (Je lis en mangeant — I read while eating), means or method (On réduit ses factures en isolant sa maison — you cut your bills by insulating your house), condition (En triant mieux, on diviserait le volume de nos ordures — if we sorted better...), or, with « tout », concession and contrast (Tout en se disant écologiste, il roule en SUV = while calling himself an environmentalist, he drives an SUV). Here is the single biggest anglophone trap in this unit: English cheerfully puts -ing after any preposition, French does not. « En » is the ONLY French preposition that takes the -ant form. After every other one you need an infinitive: sans dire un mot (without saying a word), avant de partir (before leaving), au lieu de protester (instead of protesting), pour réduire ses émissions (in order to reduce its emissions). « Après » deserves its own warning: “after insulating the walls” is après avoir isolé les murs — a past infinitive, never *après isolant.

Two more habits to unlearn. First, the subject rule. “Walking home, I heard the phone ring” goes straight across (En rentrant chez moi, j'ai entendu le téléphone sonner), but the dangling participle that English tolerates in speech — “Walking home, the phone rang” — is flatly wrong in French; you have to rebuild the sentence: Alors que je rentrais chez moi, le téléphone a sonné. Second, after most French verbs there is no -ant at all where English uses -ing: “I like cycling” = J'aime faire du vélo, “I stopped driving” = J'ai arrêté de conduire, “he carries on flying” = il continue de prendre l'avion. The -ing form is not a French building block; the infinitive is.

The PARTICIPE PRÉSENT is the same form WITHOUT « en », and it belongs to written register: administrative, legal, journalistic. Its commonest job is to compress a relative clause with « qui »: les entreprises qui ne respectent pas les quotas → les entreprises ne respectant pas les quotas (“companies failing to meet the quotas” — English does exactly the same thing, which makes this structure easy to acquire). It is INVARIABLE, even when it describes a feminine or plural noun, because it keeps its verbal force: it has an object, an adverb or a negation (une usine polluant la rivière — no -e!). The participe présent can also carry its own subject and form a proposition participiale expressing cause: Le train étant annulé, nous avons pris le covoiturage. English has the same absolute construction (“The train being cancelled, we...”), though it sounds far more formal in English than in French. It also turns up after verbs of perception: J'ai vu des militants bloquant la route.

The ADJECTIF VERBAL, by contrast, is a genuine adjective: it AGREES in gender and number (des gaz polluants, des mesures contraignantes, une politique payante), it can be preceded by « très / assez / plutôt » and it can follow être. Since English adjectives never agree with anything, this is a step you have to add consciously — the missing -e or -s is the classic anglophone slip. The practical test is simple: if the form has an object, an adverb or a negation, i.e. it can be unpacked into « qui + verb », it is a participe présent and takes no endings; if it describes a lasting quality and you could put « très » in front of it, it is an adjectif verbal and must agree. Compare: Ces chiffres, alarmant les scientifiques, ont relancé le débat (what are they doing? = participe présent) versus Ces chiffres sont très alarmants (what are they like? = adjectif verbal).

Finally, something even the French themselves get wrong: a handful of verbs have TWO DIFFERENT SPELLINGS — one for the verbal form, another for the adjective (see the table). You say en convainquant les élus, but un discours convaincant; les industriels négligeant les normes, but un maire négligent; les personnes résidant en ZFE, but les résidents du quartier. Notice that the adjectives are precisely the forms an English speaker half-recognises — convincing, negligent, resident, different, precedent — which is a useful anchor: when the French word looks like its English cousin, you are almost certainly holding the adjective. But do not let the family resemblance lull you: one of these -ant forms is a false friend. « Prétendant » (in the exercises: Tout en prétendant lutter contre le gaspillage...) means claiming, asserting — not pretending. To pretend is faire semblant de. The choice of spelling, meanwhile, is not decoration; it signals which grammatical category the word belongs to, and DELF/DALF examiners test it enthusiastically.