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Cómo estudiar sus tarjetas
Teclas de Derecha/Izquierda: Navegar entre tarjetas.tecla derechatecla izquierda
Teclas Arriba/Abajo: Colvea la carta entre frente y dorso.tecla abajotecla arriba
Tecla H: Muestra pista (3er lado).tecla h
Tecla N: Lea el texto en voz.tecla n
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4 Cartas en este set
- Frente
- Atrás
- 3er lado (pista)
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must have
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when we are almost sure that something happened ( the opposite is CAN'T HAVE)
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i must have left my phone at Anna's. i definitely remember having it there
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might / may have / could
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when we think it's possible that something happened
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somebody might have stolen your wallet when you were getting of the train
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can't
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when we are almost sure something didn't happen ( we can use COULDN'T HAVE when the speculation is about the distant past)
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she can't have gone to bed. it's only ten o'clock!
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should have /ought to have + past part.
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to say that sb didn't do the right thing or to express regret or criticism
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it's my fault. i ought to have told you earlier that my mother was coming.
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