Passive voice 

Marge buys a new hat 

Present Tense: Marge buys a new hat today

                       A new hat is bought by her today

Past Tense: Marge bought a new hat yesterday

                  A new hat was bought by her yesterday

Present continuous: Marge is buying a new hat now

                              A new hat is being bought by her now

past continuous: Marge was buying a new hat last night

                         A new hat was being bought by her last night

Future will: Marge'll buy a new hat tomorrow

                  A new hat will be bought by her tomorrow

Future be going to: Marge is going to buy a new hat tomorrow

                             A new hat is going to be bought by her tomorrow

Present Perfect: Marge has bought a new hat since 2006

                         A new hat has been bought by her since 2006

Past Prefect: Marge had bought a new hat yesterday

                    A new hat had been bought by her yesterday

Modal verb: Marge can buy a new hat 

                    A new hat can be buy by her