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Perfect Infinitive with Modal verbs or Modal Perfect.ppt

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    Perfect Infinitive with Modal

    verbs or Modal Perfect

    October, 2012

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    Form:

    Modal verb + have + past participle

    e.g. There is some blood in the

    sink. He must have hurt himself in

    the garden.

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    Use:

    - to refer to the past;

    - to refer to unreal situations;- to show that the activity was

    different from what we wanted.

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    > could have done could have done (2) must have done cant have done

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    > may/might have done should have done would have done


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