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he grammar: Perfective Verb Forms. Ask students to learn Grammar Summary 4, page 101. Then deal with the grammar exercises on Page 29. T: Ex 3 will help us understand the structures better. Now I will ask some of you to write out the structure of each verb form. After students writing the structures on the blackboard, ask students to read and try to keep them in mind. Present Perfect have / has done Present Perfect Continuous have / has been doing Past Perfect had done Past Perfect Continuous had been doing Future Perfect will have done Perfect infinitive to have done Perfective ing form having done Passive perfective ing form having been done Ex 4 will help students have a better understanding of Perfective Verb Forms. After finishing Ex 4, go on with the exercises in the Language Power on Pa