sont devenues

became; have become

→ être
phrase Rare #31,907
became; have become Feminine plural form of "devenir". Use this with feminine plural subjects. Depending on context, English may use simple past "became" or present perfect "have become".
FR: Toutes celles qui ont travaillé sur ce projet sont devenues millionnaires.
EN: All the women who worked on this project became millionaires.

Les feuilles des arbres du jardin sont devenues complètement rouges.

The leaves of the trees in the garden have turned completely red.

Elles sont devenues folles.

They went crazy.

Les choses sont devenues vraiment bizarres.

Things got really weird.

Ces filles sont devenues l'enjeu central de l'élection.

These girls have become the central issue of the election.

— Article 15 (2019)

Les oreilles de mon père sont devenues rouges.

My father's ears turned red.

— भाग मिल्खा भाग (2013)

Ces chaussures sont devenues bon marché.

These shoes have become cheap.

Les choses sont devenues incontrôlables.

Things got out of control.

Elles sont devenues de très bonnes amies.

They became very good friends.

Les choses sont devenues très compliquées.

Things have become very complicated.