GRAMMAR
Tense                          Active Voice                         Passive Voice
Simple Present Tense                       S    + V1       + O            O + am/is/are + V3 + by + S
Simple Past Tense                         S    + V2 + O                   O + was/were + V3 + by + S
Simple Future Tense                       S + will/shall + V1+ O        O + will/shall + be + V3 + by+ S
Present Continuous Tense                S+ am/is/are+ V1+ ing+ O        O + am/is/are+ being+ V3+ by +S
Past Continuous Tense                   S+ was/were+ V1+ ing+ O         O + was/were+ being+ V3 + by +S
Future Continuous Tense               S+ will/shall+ be+ V1+ ing+ O               --------------
Present Perfect Tense                    S + have/has+ V3+ O             O + have/has + been + V3 + by + S
Past Perfect Tense                       S + had + V3 + O                  O + had + been + V3 + by + S
Future Perfect Tense               S + will have/ shall have+ V3+ O   O+ will have/shall have+ been+ V3+ by+ S
Present Perfect Continuous Tense    S +have/has+ been +V1+ ing+ O                     ---------------
Past Perfect Continuous Tense          S +had+ been +V1+ ing+ O                        -------------
Future Perfect Continuous Tense    S+ will have/shall have+ been+                    __________
                                               V1 + ing + O
  S- Subject          O-Object                  V2- Past Tense             V1-Verb (Base Form of Verb)
  V3- Past Participle