on ne peut pas se permettre de

we can't afford to

→ on
phrase Rare #41,977
we can't afford to Used to say that something is too costly, risky, or undesirable to do. The subject on often means “we” in this expression, though it can also mean “one” or “people” depending on context.
FR: On ne peut pas se permettre de rater ce train.
EN: We can't afford to miss this train.

On ne peut pas se permettre de refaire cette erreur.

We can’t afford to make that mistake again.

Mais on ne peut pas se permettre de traîner, alors je vais parler vite!

But we can't afford to dawdle, so I'm going to speak fast!

— Demon Slayer : Kimetsu no Yaiba - Le film : Le train de l'Infini (2020)

On ne peut pas se permettre de te perdre.

We can’t afford to lose you.

On ne peut pas se permettre de perdre plus de temps.

We can't afford to waste any more time.

On ne peut pas se permettre de prendre des risques.

We can't afford to take risks.