to tell him or her the truth
Tom devrait lui dire la vérité.
Tom should tell him the truth.
Tu ne l'aimes pas assez pour lui dire la vérité.
You don't love him enough to tell him the truth.
— Blade Runner 2049 (2017)
Peut-être que vous devriez lui dire la vérité.
Maybe you should tell him the truth.
Si elle demande, je dois lui dire la vérité.
If she asks, I have to tell her the truth.
Tu devrais peut-être lui dire la vérité.
Maybe you should tell him the truth.
Je veux lui dire la vérité sur moi.
I want to tell him the truth about myself.
— Demain tout commence (2016)
I'll tell him the truth.