they ... him/it
Ellos lo acusaron de robar la bicicleta.
They accused him of stealing the bicycle.
They despise him.
Ellos lo enterraron en su tumba.
They buried him in his grave.
Seguramente, ni ellos lo habrán sabido.
They probably didn't even know.
— El salario del miedo (1953)
Ellos lo oyeron bajar por las escaleras.
They heard him coming down the stairs.
They ruined it.
No, ellos lo encontrarán allí.
No, they’ll find it there.
They built it.