Thursday, November 29, 2012

Using the present perfect tense

November 29, 2012

Form: has / have + past participle form of the verb Affirmative Negative Question I have worked. I have not worked. Have I worked? He has worked. He has not worked. Has he worked? She has worked. She has not worked. Has she worked? They have worked. They have not worked. Have they worked? We […]

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Free Grammar Guide: "120 Deadly Grammar and Vocabulary Mistakes."