PASSIVE VOICE

                   ACTIVE VOICE → PASSIVE VOICE


  
                           Rumus :  S + to be + V3  




       example : 
                                                        active → passive

                       1.  Marry helps John                    →         John is helped by Marry
                       2.  Marry is helping John             →         John is being helped by Marry
                       3.  Marry has helped John           →         John has been helped by Marry
                       4.  Marry helped John                  →         John been helped by Marry
                       5.  Marry will helped John            →         John will be helped by Marry
                       6.  Marry will have helped John   →         John will have been helped by Marry



NB : 

  ing                  : being
 has/have/had : been
 will                  : be