could have died
Tom pudo haber muerto.
Tom could have died.
Si no hubiera sido por el tratamiento médico, este paciente pudo haber muerto.
If it hadn't been for the medical treatment, this patient could have died.
Quiero demostrar que Santiago pudo haber muerto sin veneno alguno.
I want to prove that Santiago could have died without any poison whatsoever.
— Cuestión De Honor (1992)