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Thread: irregular verbs

  1. Anonymous
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    #1

    irregular verbs

    Dear colleague,
    i'm an english teacher from Belgrade and I just wanted to ask whether
    forms of irregular verb To cost -cost ad costed are both correct.

    thanks in advance

  2. Editor, UsingEnglish.com
    English Teacher
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    #2
    They are different- the form 'cost' describes how much you paid for something. 'Costed' is used for giving estimates- the builder costed the job at five hundred pounds.

  3. Casiopea's Avatar

    • Join Date: Sep 2003
    • Posts: 12,970
    #3

    Re: irregular verbs

    Quote Originally Posted by catryn
    Dear colleague,
    I'm an English teacher from Belgrade and I just wanted to ask whether forms of the irregular verb To cost -cost and costed are both correct. Thanks in advance.
    In addition to what tdol said,

    the verb to cost has the following forms: cost, cost, cost

    Present: cost(s)
    Past: cost
    Participle: cost

    Present
    The book costs $4.
    The books cost $4.

    Past
    The book cost $4.
    The books cost $4.

    Participle
    The book had cost $4.

    :D

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