The passivo .. activo a pasivo

The passive
ACTIVA: Podemos enfocar la acción del verbo en el SUJETO QUE REALIZA
PASIVA: o en el OBJETO SEÑALADO.

Ejemplos:
Voz Activa: The portercarries the bags. (el portero lleva los bolsos)
Voz Pasiva: The bags are carried by the porter. (los bolsos son llevados por el portero)

La voz pasiva se formautilizando el verbo to be + el verbo principal en participio (past participle).
y auxiliares dependiendo el tiempo
Presente simple: IS ARE
Pasado simple:WAS WERE
Presente perfecto: HAS o HAVE BEEN
Futuro: WILL BE
Be going to.- Can be

Pasivo a activo:
War and peace (cosa) was(auxiliar) written(verbo) byleo tolstoy (persona)
Leo tolstoy (persona) wrote(verbo en pasado) war and peace( cosa)

The pyramids in egypt have been visited by million of touristMillion of tourist have visited the pyramids

The box is sent by juani - juani sent the box
Will adam be met at the airport by juani? will be juani meet adam inthe airport?

Were you taught to read by your parents? did your parents TEACH you read?
I was taught me to parents my parents taught me to readTRANSITIVE VS INTRANSITIVE
Se refiere al complemento:
En transitive hay un objeto de complemento
Intransitive: no hay objeto que acompañe al verbo comocomplemento

Amy wrote a letter (complemento)
Emily is crying (solo verbo)

Activo a pasivo: alice discovered the mistake the mistake was discovered by alice
Didthe koreans invent gun? Was gun invented by koreans?

Progressive verb : ing
Some people are considering a new plan
A new plan(cosa) is being considered