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  1. #1
    Unregistered Guest

    Question If-clauses

    when explaining the conditional Type 1 (If + simple present, main clause: will-future, simple present or modal + base form) the following question arose:

    Which time will be needed in the main clause in the following sentence:

    If the online button is illuminated, you ??????? (to make) a mistake.

    Do you just need present perfect (have made) or future 2 (you will have made) or what else do you need here?

    IŽd be very happy to receive an explanation.

    Thanks in advance.

  2. #2
    Join Date
    Jan 2008
    Posts
    57

    Re: If-clauses

    Quote Originally Posted by Unregistered View Post
    when explaining the conditional Type 1 (If + simple present, main clause: will-future, simple present or modal + base form) the following question arose:

    Which time will be needed in the main clause in the following sentence:

    If the online button is illuminated, you ??????? (to make) a mistake.

    Do you just need present perfect (have made) or future 2 (you will have made) or what else do you need here?

    IŽd be very happy to receive an explanation.

    Thanks in advance.
    "you have made a mistake" would be the usual way to express this.
    But - "if you then decide to proceed anyhow, even though the online button is illuminated, you will have made a mistake."

  3. #3
    riverkid is offline Banned
    Join Date
    Aug 2006
    Posts
    3,059

    Re: If-clauses

    Quote Originally Posted by cclaff View Post
    "you have made a mistake" would be the usual way to express this.
    This is a good example of the present perfect of current relevance. Note that CClaff said 'usual'. Certainly, the present simple could be used. It would be interesting to see what percent of AmE speakers chose one over the other in varying circumstances.

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