Progressive change (aller en + gérondif)

Making cheese is a game of patience and constant transformation. To describe a continuous, progressive evolution—like a cheese slowly aging in a cellar—French uses the verb aller.

Expressing progressive change

To say that something "keeps happening" or happens "more and more," combine a conjugated form of the verb aller (to go) with the gérondif (the preposition en + the present participle ending in -ant).

During this phase, the fermentation keeps increasing.
Pendant cette phase, la fermentation va en augmentant.
During the ripening, the rind keeps hardening.
Pendant l'affinage, la croûte va en durcissant.

Progressive change with reflexive verbs

Many verbs describing physical transformations are reflexive (like se développer or s'intensifier).

When using a reflexive verb in the gérondif, place its reflexive pronoun directly between en and the present participle.

However, the mold goes on developing on the rind.
Cependant, la moisissure va en se développant sur la croûte.
The smell of the cheese keeps intensifying during the ripening.
L'odeur du fromage va en s'intensifiant pendant l'affinage.

While the gérondif never changes its form, the verb aller must be conjugated to match the subject.

The cheesemaker confirms it, the bacteria keep developing.
Le fromager le confirme, les bactéries vont en se développant.