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    when, present perfect

    A: I have mowed the lawn.
    B: When have you mowed the lawn?
    (Quoted from Illustrated English Sentence Structures by Su Qin, p258)

    Is B's question in the above dialogue acceptable?
    I need native speakers' help.

  1. MikeNewYork's Avatar
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    Re: when, present perfect

    I would say "When did you mow the lawn?"

  2. emsr2d2's Avatar
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    Re: when, present perfect

    It's not very natural. You might hear a variant on it in a dialogue such as this:

    Mum: What are you going to do this weekend?
    Kid: I'm going to do my homework.
    Mum: That's great. What else will you do?
    Kid: I'll probably go to the cinema.
    Mum: OK. Are you going to help me with any chores?
    Kid: Ummmm, I might mow the lawn for you.
    Mum: Hah! When have you ever mowed the lawn?
    Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.

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