2. The structure of the present perfect tense is: it? done they Have ? finished? you Have ? football. played not have We - to Rome. been not has She - mine. eaten have You + aliens. seen have I + main verb auxiliary verb subject
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8. The structure of the past perfect tense is: dinner? eaten they Had ? arrived? you Had ? left. not had We - to school. gone not had She - before me. stopped had You + my work. finished had I + main verb auxiliary verb subject
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12. The structure of the future perfect tense is: it? received have they Will ? arrived? have you Will ? left. have not will We - to school. gone have not will She - me by then. forgotten have will You + by 10am. finished have will I + main verb auxiliary verb auxiliary verb subject
