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English Grammar: Present Perfect and Past Perfect Tenses, Tesis de Cálculo Avanzado

Examples and questions to help understand the use of the present perfect and past perfect tenses in english. These tenses are used to describe actions that have been completed before another action in the past or present. Affirmative, negative, and yes/no questions.

Tipo: Tesis

2021/2022

Subido el 06/04/2022

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¡Descarga English Grammar: Present Perfect and Past Perfect Tenses y más Tesis en PDF de Cálculo Avanzado solo en Docsity! Present Perfect (have /has) Past Perfect Aff: I have read many books about magic Neg: I haven't read many books about magic Yes/no: I have read many books on magic? Aff: he had already read many books on magic. Neg: he had not read many books on magic Yes/no: Had you already read many books on magic? Aff: I have to drive to work in the morning Neg: I don't have to drive to work in the morning Yes/no: I have to drive to work in the morning? Aff: He had already driven to work when she called Neg: He hadn't driven to work when she called. Yes/no: had you driven to work when she called?
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