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Introduction to Exercise 4 - Using the past participle form (-ed/-en) after have or be
Grammar Explanation

•  Use the past participle form of a verb after the auxiliaries: have, has, and had.
  • Examples: I have worked there for six months. Edel has known her since September.
•  Use the past participle form of a verb after forms of BE: am, is, are, was, were, be, being, and been in the passive voice.
  • Examples: The suspect was arrested two days ago. He has been held since then.
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What You Will Do

The following passages contain mistakes with the use of past participle. Click on the word or phrase that contains the mistake. When you click, a box will appear. Type the correct word or phrase in this box and then click the INSERT button. When you have finished making all the corrections, click DONE to compare WHAT YOU WROTE with WHAT WE WROTE.
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