Selasa, 14 November 2017

Active and Passive Voice

Voice refers to the form of a verb that indicates when a grammatical subject performs the action or is the receiver of the action. When a sentence is written in the active voice, the subject performs the action; in the passive voice, the subject receives the action. In academic writing, it is generally preferred to choose an active verb and pair it with a subject that names the person or thing doing or performing the action. Active verbs are stronger and usually more emphatic than forms of the verb “be” or verbs in the passive voice.

USING THE AUXILIARY VERB “BE”
The passive voice is formed by using a form of the auxiliary verb “be” (be, am, is, are, was, were, being, been) followed by the past participle of the main verb.
                Active                                                                           Passive
                He loves me.                                                                 I am loved.
                We took our children to the circus.                              The children were taken to the circus.
                A thief stole my money.                                               My money was stolen.

Notice how the “be” auxiliaries change the meaning of the verbs from action to condition or from “doing” to “being.”
                He remembers his grandmother.             (“he” is doing an action: remembering)
                His grandmother is remembered.            (“she” is in a condition: being remembered)

In this way, the past participle functions very much like an adjective; it describes the subject.
                The woman is pretty.                                                     She is a pretty woman
                The woman is married.                                                  She is a married woman.

VERB TENSES USED IN ACTIVE AND PASSIVE VOICE
The following is a summary of active and passive forms of all verb tenses. Remember that in active forms the subject of the sentence is the person or thing that does the action. In passive constructions, the verb is performed by someone or something other than the subject; often, the action is done to the subject by someone else.

Present Time

• Simple Present
Use the simple present tense to make a generalization, to present a state of being, or to indicate a habitual or repeated action.
                Active                                                                           Passive
                base form or “-s/-es” form                                         am/is/are + past participle
                Professor Brown teaches at Hunter.                             Sonia is taught by Professor Brown.
                All humans are equal.                                                  All humans are created equal.
                Maria eats in the cafeteria.                                          The cafeteria is cleaned

• Present Progressive
Use the present progressive to describe an ongoing activity or a temporary action.
                Active                                                                    Passive
                am/is/are + -ing                                                    am/is/are + being + -ed/-en
                The students are learning Spanish.                        Classes are being conducted in Spanish.
                I am working at McDonald’s until I finish            He is being hired to work at McDonald’s.                  school.

• Present Perfect
Use the present perfect to describe an action occurring in the past but relevant to the present, or extending to the present.
               Active                                                                     Passive
               has/have + -ed/-en                                                  has/have + been + -ed/-en
               Hunter has opened a language institute                  The language institute has been opened to                 in East Harlem.                                                        relocate students off the main campus.

• Present Perfect Progressive
Use the present perfect progressive to describe an ongoing action beginning before now and is still relevant to the present.
                Active                                                                            Passive
                has/have + been + -ing                                                 has/have + been + being + -ed/-en
                Hunter has been awarding BA and MA                  
                diplomas for over one hundred years.

Note: Because of awkward construction, the perfect progressive form is not used in the passive voice. Instead, an adverb may be used to show continuing action: “We have been repeatedly scolded for being late.”

Past Time

• Simple Past
Use the simple past to indicate a general or habitual action occurring in the past or at a specific time in the past.
             Active                                                              Passive
             base + -ed or irregular form                         was/were + -ed/-en
             Our family bought all our clothes at Sears     The clothes were bought by my mother                             when I was young.
             On my fifteenth birthday, my uncle gave       The money was given to me to buy new clothes               me one hundred dollars
             
In informal conversation, speakers of English often express habitual behavior in the past using the modal “would.”
               
                Active                                                           Passive
                would + base                                                would + be + -ed/-en
                We would usually eat burgers in the             Most of the french fries would be eaten                              food court.                                                     before we got to the table.

• Past Progressive
Use the past progressive to indicate an ongoing action in the past or an action continuing through a specific past time.
                Active                                                                     Passive
                was/were + -ing                                                     was/were + being + -ed/-en
                Mary and Paul were dating in those days.             One afternoon, Mary was being kissed by                                                                                when her mother passed by
• Past Perfect
Use the past perfect to indicate an action completed prior to a particular time or before another action in the past.
                Active                                                                           Passive
                had + -ed/-en                                                               had + been + -ed/-en
                Completed:
                Mary's mother was shocked because                           Mary had been kissed many times                        she had forbidden her daughter to date.                       before that day.

• Past Perfect Progressive Use the past perfect progressive to indicate a continuing action that began before a past action or time.
                Active                                                                                   Passive
                had + been + -ing                                                            had + been + being + -ed/-en
                Mary had been trying to tell her mother                                                                                                    about Paul for a long time.

Future Time

• Simple Future
Use the future to indicate an action that is expected to take place at a future time.
                Active                                                                Passive
                will + base                                                         will + be + -ed/-en
                Paul and Mary will marry in June.                    They will be married by a priest and a rabbi.
               
                or                                                                       or
                am/is/are going to + base                                am/is/are + going to be + -ed/-en
                Mary is going to wear her grandmother's         The gown is going to be adjusted to fit Mary                  gown. 

• Future Progressive
Use the future progressive to indicate an action in future with emphasis on continuing action.
                Active                                                                        Passive
                will + base + -ing                                                      will + be + being + -ed/en
                Mary and Paul will be spending lots                         Note: Not used in the passive voice.                       of time on the beach.

• Future Perfect
Use the future perfect to indicate a future action expected to be completed before another future action or time.
                Active                                                                      Passive
                will + have + -ed/-en                                              will + have + been + -ed/en
                By their wedding date, they will have                     Note: Not used in the passive voice.                        saved enough money to buy a house.

• Future Perfect Progressive
Use the future perfect progressive to indicate an action projected to have been going on for a while before a time in the future.
                Active                                                                     Passive
                will + have + been + -ing                                      will + have + been + being + -ed/-en

                When they celebrate their first                               Note: Not used in the passive voice.                          anniversary, they will have been                                                                                                                living together for a full year.

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