tell him/her
Devo dizer-lhe que devia estar seguindo ele, não a esposa.
I must tell you that you should be following him, not his wife.
— O Conformista (1971)
Aceitaria ir dizer-lhe isso a Santarém?
Would you agree to go to Santarém and tell him that?
— Mistérios de Lisboa (2010)
Eu estava tentando dizer-lhe isso, mas ele não quis me ouvir.
I was trying to tell him that, but he didn't want to listen to me.
Tudo o que você tinha de fazer era dizer-lhe a verdade.
All you had to do was tell him the truth.
Quero dizer-lhe algo muito importante.
I want to tell you something very important.
— Diários de Motocicleta (2004)
Mãe, não pode dizer-lhe que estou doente?
Mom, can't you tell him I'm sick?
— A Princesa Prometida (1987)