U7E2_Elem_PresentPerfect_PastContinuous_PastSimple

●Past continuous

●Present perfect

​La unidad 7 es de gran impacto en la adquisición de habilidades comunicativas en el idioma, ya que muestra la interacción entre tres estructuras gramaticales: Presente perfecto, Pasado continuo y Pasado simple, correspondientes a los colores verde, azul claro y rojo claro en el diagrama, respectivamente.

El presente perfecto nos permite, entre otros usos, hablar de experiencias y requiere del auxiliar “have”, equivalente al “haber” en español:

-Yo me he roto un hueso: - I have broken a bone twice in my life:

El pasado continuo nos permite indicar lo que estaba sucediendo en un momento específico del pasado:

-Yo me estaba duchando cuando… - I was taking a shower when…

El pasado simple nos permite indicar eventos que sucedieron una sola vez en el pasado, ejemplo:

-Yo me resbalé y caí sobre mi brazo derecho - I slipped and fell on my right arm.

En combinación: 

-I have broken a bone twice in my life: The first time, I was taking a shower when I slipped and fell on my arm.

●Past simple

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A: ​

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you ever ​

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really scared?

B: Yes. One day I ​

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​

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to Mexico City from Cancún when we all ​

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to feel severe turbulence and the oxygen masks came down.

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Have

been

was

flying

started

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A: I ​

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never ​

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to Paris. What is it like?

B: Well, the only time my family and I ​

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there, it ​

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raining really hard! We ​

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really leave the hotel.

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have

been

were

was

didn't