|Simple present||Am/are/is + past participle (pp)||English is spoken here|
|Present progressive||Am /are/is being + pp||Excuse the mess: the house is being paintend|
|Simple past||Was/were + pp||I wasn’t invited, but I went|
|Past progressive||Was/were being + pp||I felt I was being watched|
|Present perfect||Have/has been + pp||Has Mary been told?|
|Past perfect||Had been + pp||I knew I had been forgotten|
|Will future||Will be + pp||You wil be told soon|
|Future perfect||Will have been + pp||Everything will have been done by Tuesday|
|Going to future||Am/is/are going to be + pp||Who is going to be invited?|
El sujeto de un verbo en voz pasiva corresponde al objeto de un verbo en voz active
Passive: This house was built in 1486. German is spoken in Austria.
Active: They built this house in 1486. Austrians speak German.
En la voz pasiva podemos usar by + sustantivo (noun) si necesitamos decir quién realiza la acción.
This house was built in 1486 by Sir John Latton.
Tomado del libro: “how English works” A grammar practice book. Michael Swan, Catherine Walter.
Este libro lo puedes encontrar en la Mediateca de la Fac. de Arquitectura.