en las frases de doble objeto -al ser el objeto el sujeto de la pasiva- podemos hacer 2 pasivas.
THEY WILL GIVE TRACY A NICE SURPRISE
TOMORROW (activa)
(pasiva): TRACY WILL BE
GIVEN A NICE SURPRISE BY THEM TOMORROW
(pasiva): A NICE SURPRISE
WILL BE GIVEN TO TRACY BY THEM TOMORROW
- LA POLICÍA MOSTRÓ AL TESTIGO FOTOS DE TRES
POSIBLES SOSPECHOSOS
VOZ ACTIVA =
THE POLICE SHOWED THE WITNESS PHOTOS OF THREE
POSSIBLE SUSPECTS
VOZ PASIVA =
PHOTOS OF THREE POSSIBLE SUSPECTS WERE SHOWN TO THE WITNESS BY THE POLICE