Voz ativa e Voz passiva
Autor: Aline Moni | Publicado: 2012-09-19T06:59:00-07:00

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Passive Voice

A voz
passiva é feita com to be ( no mesmo e forma do verbo na voz ativa) seguido do
particípio passado desse verbo. Ela é usada para destacar não quem pratica a
ação, mas sim a ação em si e quem recebe os seus efeitos ( o objeto do verbo na
ativa). Esse objeto da voz ativa ganha destaque como sujeito da passiva,
ficando no início da frase.

O sujeito do
verbo na voz ativa pode aparecer como agente da passiva, precedido de by, mas
só quando ele for bem definido ou sua menção for importante. Como não é esse o
espírito da expressão passiva, muitas vezes o agente não é mencionado. Veja as
mudanças nas construções, primeiramente em frases com verbos nos tempos
simples.

 

  


  
Sujeito

  
Verbo

  
Objeto

  


 

  
Voz
  ativa

  
They

  
use

  
lasers

  
in eye surgery

 

  
  
They

  
used

  
lasers

  
in that operation

 

  
Eles

  
usam
  raios 

  
lasers
  na 

  
cirurgia
  dos

  
olhos

 

  


  


  


  


  


 

  
 
Voz
  ativa
  
Lasers

  
are used

  
in eye

  
surgery

 

  


  
Lasers

  
were used

  
in eye

  
surgery

 




Tempos Continuous: Present Continuous
e Past Continuous

 

  


  
sujeito

  
verbo

  
objeto

  


 

  
Voz
  ativa

  
they

  
are using

  
lasers

  
in many other areas

 

  


  
they

  
were using

  
lasers

  
in many other areas

 




 

  


  
Sujeito

  
verbo

  
objeto

  


 

  
Voz
  passiva

  
Lasers

  
are being used

  
-

  


 

  


  
Lasers

  
were being used

  
-

  


 


Tempos Perfeitos: Present Perfect e
Past Perfect

 

  


  
sujeito

  
Verbo

  
objeto

  


 

  
Voz
  ativa

  
They

  
have used

  
laser

  
in many other areas

 

  


  
They

  
had used

  
laser

  
in many...

 




 

  


  
Sujeito

  
verbo

  
objeto

  


 

  
Voz
  passiva

  
Lasers

  
had
  been used

  
-

  
in
  many...

 

  


  
Lasers

  
had
  been used

  
-

  
in
  many...

 




Verbos com will ou outros modal
auxiliary verbs:

 

  
Voz
  ativa

  
Sujeito

  
Verbo

  
Objeto

  


 

  


  
They

  
will
  use

  
lasers

  
in
  many...

 

  
Voz
  passiva

  
Lasers

  
will
  be used

  
-

  
in
  many ...