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  1. #1
    sydboy007 is offline Newbie
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    Default determining when "be" & "have" are main / auxilliary verb

    I need some help in determining where a main and auxiliary verb is in the below sentences. If someone can point me in the right direction I'd greatly appreciate it
    ----------------------
    This group is 'have' as a main and aux verb

    They have decided to send a spaceship.. (as main verb?)

    They have done tests and know that plants can grow there (as an aux verb?)

    They have not seen any alien life there (as an aux verb?)
    -------------------

    The next group is 'be' as a main and auxiliary verb

    No one else will be able to join the space colony

    The spaceship will be controlled from Earth (be as aux verb since will is a modal verb and controlled would be the main verb?)

    They are very confident that human beings will be able to live there

    They have not seen any alien life there, but they cannot be sure that it doesn't exist (be as main verb?)

  2. #2
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    5jj is offline VIP Member
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    Default Re: determining when "be" & "have" are main / auxilliary verb

    Quote Originally Posted by sydboy007 View Post

    They have decided to send a spaceship.. (as main verb?)X

    They have done tests and know that plants can grow there (as an aux verb?)

    They have not seen any alien life there (as an aux verb?)

    'have' in the first sentence performs exactly the same function as in the first - an auxiliary used to form the present perfect.
    -------------------

    The next group is 'be' as a main and auxiliary verb

    No one else will be able to join the space colony. what do you think?

    The spaceship will be controlled from Earth (be as aux verb since will is a modal verb and controlled would be the main verb?) 'be' is an auxiliary verb used to form the passive.

    They are very confident that human beings will be able to live there what do you think?

    They have not seen any alien life there, but they cannot be sure that it doesn't exist (be as main verb?)
    5

  3. #3
    sydboy007 is offline Newbie
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    Default Re: determining when "be" & "have" are main / auxilliary verb

    Thanks for the help

    No one else will be able to join the space colony. (be as aux verb as will is a modal)

    they are very confident that human beings will be able to live there (be as aux verb as will is a modal)

    In terms of have a main verb would i be correct in using:

    Has traveled all his life and has been to every corner of the world. (has is the 3rd person singular present indicative of have)

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