ils nageaient

were swimming

→ nager
nage swim + aient imperfect tense, they
verb · third plural · imperfect indicative Rare #44,952
were swimming imperfect tense (ongoing or habitual action in the past)
FR: Quand j’étais petit, mes cousins nageaient dans la rivière tous les étés.
EN: When I was little, my cousins used to swim in the river every summer.
Conjugation of nager
Indicative imperfect
SingularPlural
Third nageait nageaient

Les enfants nageaient nus.

The children swam naked.

Les enfants nageaient tout nus.

The children swam naked.

Sami et Layla nageaient dans la piscine.

Sami and Layla were swimming in the pool.

J'ai vu quelques têtards qui nageaient dans la mare.

I saw some tadpoles swimming in the pond.