วันศุกร์ที่ 28 ธันวาคม พ.ศ. 2555

English Corner:มุมภาษาอังกฤษ

Active and Passive Voice

The form of the verb which shows the importance of its subject is called the Active Voice.
  • Students respect their teachers.

The form of the verb which shows the importance of its object rather than the subject is called the Passive Voice.
  • Teachers are respected by students.

Active:   A does B.
Passive : B is done (by A).

Form
to be + past participle (the third form of the main verb)

  • Simple Present: am/are/is + the past participle
  • Simple Past : was/were + the past participle
  • Future: will be + the past participle

Example
Simple Present
  • Active:  Tom builds a house.
  • Passive: A house is built by Tom.
Simple Past
  • Active: Tom built a house.
  • Passive: A house was built by Tom.
Will-future
  • Active : Tom will build a house.
  • Passive: A house will be built by Tom.

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