remain calm

Let's remain calm.

Restons calmes.

All citizens are requested to remain calm.

Tous les citoyens sont priés de garder leur calme.

— Kiki's Delivery Service (1989)

Everyone, remain calm.

Restez calmes.

— The Bluff (2026)

Remain calm.

Reste calme.

— [REC] (2007)

In this kind of the situation, it is preferable to remain calm.

Dans ce genre de situation, il est préférable de rester calme.

Remain calm during the meal.

Restez calme pendant le repas.

Everyone remain calm.

Que tout le monde reste calme.

— Everything Everywhere All at Once (2022)

Please remain calm, people.

Restez calmes, s'il vous plaît.

— The Host (2006)

All right, everyone, remain calm.

Très bien, tout le monde reste calme.

I tried to remain calm.

J’ai essayé de rester calme.