| 10.6.7 Ejercicio 7 - Repetición: Verbos modales y negación |
| Transforme estas frases afirmativas en frases negativas | |
| He could have been a doctor. | |
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| They always have wanted to live by the sea. | |
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| She swims all day. | |
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| The girl got the train. | |
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| You have been waiting for him for hours. | |
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| They have lived in a castle since 1798. | |
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| He worked yesterday. | |
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| They are closing the bar, we should ask them to open again. | |
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| She had been having her exams right before, she went to France. | |
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| We have been waiting for you here since ten, now it's twelve. | |
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