PASSIVE VOICE

Passive voice adalah suatu grammatical construction (bentuk gramatikal) dimana subject pada sentence (kalimat) atau clause (klausa) tidak melakukan aksi, melainkan menerima aksi atau ditindak lanjuti (receiver of action) oleh agent lain (doer of action) baik disebutkan ataupun tidak.
Rumus Passive Voice :
                        Active    :  S + V + O
                Passive   : O + Be + V3 + S

Passive voice bisa terbagi ke dalam beberapa kelompok yakni :

1. Present Passive Voice
2. Past Passive Voice
3. Future Passive Voice 
4.  Modal Auxiliary Passive Voice

1.  Present Passive Voice

• Simple Present Tense

          Pola :          Active  : S + V1 (s/es) + O
                             Passive : O + am/is/are + V3 + by + S
 
          Example :
            Active  : She writes a letter
            Passive : A letter is written by her

• Present Continuous

          Pola:            Active  : S + Tobe + Ving + O
                              Passive : O + Tobe + being + V3 + by + S

          Example :
            Active  : She is writting a letter now
            Passive : A letter is being written by her now

•  Present Perfect Tense

            Pola:         Active  : S + has/have + V3 + O
                             Passive : O + has/have + been + V3 + by + S

           Example:
              Active : They have built a house
              Passive : A house has been built by them

• Present Perfect Continuous 

           Pola:           Active  :  S + have/has + been + Ving + O
                              Passive : O + have + been + being + V3 + by + S

           Example :
              Active  :    He have watched titanic movie
              Passive :    Titanic movie has been watched by us


2. Past Passive Voice

• Simple Past

          Pola:             Active  : S + V2 + O
                               Passive : O + was/were + V3 + by + S + Adv.

          Example :
             Active  :  The news surprised Deni
             Passive :   Deni was surprised by the news

• Past Continuous

          Pola:             Active : S + Tobe + Ving + O
                               Passive : O + was/were + being + V3 + by + S
    
          Example:
            Active : Ratna was reading the novel
            Passive :The novel was being reading by Ratna

• Past Perfect 

          Pola:              Active : S + had + V3 + O
                                Passive : O + had + been + V3 + by + S

          Example:
             Active  : I had finished my work
             Passive : My work had been finished by me

• Past Perfect Continuous

          Pola:               Active :  S + had + been + Ving + O
                                 Passive : O + had + been + being + V3 + by + S

          Example :
             Active  : She had been meeting them
             Passive :They had been being met by her


3. Future Passive Voice

• Simple Future

          Pola:               Active  : S + will + V1 + O
                                  Passive : O + will + be + V3 + by + S

          Example :
             Active  : She will write a letter
             Passive : A letter will be written by her

• Future Continuous 

           Pola :              Active  : S + will + be + Ving + O
                                  Passive : O + will + be + being + V3 + by + S

            Example :
               Active  :  She will be reading the legend story
               Passive : the legend story wil be being read by her

• Future Perfect 

          Pola :                 Active  : S + will + have + V3 + O
                                    Passive : O + will + have + been + V3 + by + S

          Example:
             Active  : Nadia will have reply the letter
             Passive : The letter will have been replied by her

• Future Perfect Continuous

          Pola :                 Active  :  S + will + have + been + Ving + O
                                    Passive : O + will + have + been + being + V3 + by + S

          Example:
            Active :  Martin will have been presenting final project
            Passive: Final project will have been being presented by him


4. Modal Auxiliary Passive Voice
   
         Pola:        Active  : S + Modals + V1 + O
                         Passive : O + Modals + be + V3 + by + S

         Example:
           Active : The woman would rub the clothes
           Passive :The clothes would be rubbed by the woman
 

Sumber :
http://tipspelajaranbahasainggris.blogspot.com/2012/12/pengertian-rumus-dan-contoh-passive.html
http://munupos.blogspot.com/2013/09/pengertian-contoh-dan-rumus-passive.html
http://www.englishpractice.com/improve/active-passive-voice-future-tense/