1) Estructura para crear una pregunta en "present perfect" a) have/has+subject+ever+verb(participle)+complement+? b) subjet+ever+verb(participle)+complement+? 2) sentence in present perfect (correct sentence) a) we has gone to ARICA b) We have gone to Arica 3) sentence in present perfect (correct sentence) a) Gustavo and sergio have written the homework b) gustavo and sergio have write the homework 4) sentence in present perfect (correct sentence) a) the cat has slept all day b) the cat have  slept all day 5) rewrite the sentences from present to past simple ( I don t think about it )  a) I didnt think about it b)  I don t think about it 6) cuales son los pronombres personales o verbos auxiliares para "have" a) he-she-it  b) I-you-we-they 7) cuales son los pronombres personales o verbos auxiliares para "has" a) I-you-we-they b) he-she-it 8) completa la oración en present perfect  (she ________ been your friend for many years a) have b) has 9) estructura de la pregunta en "past simple " a) Did +subject+verb(infinitive) + complement b) subject+verb(infinitive) + complement 10) Escoge la oración correcta ( present perfect " estructure pregunt") a) have you eaten a sandwich already b) you eaten a sandwich already

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