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  1. Newbie
    Student or Learner

    • Join Date: Jun 2008
    • Posts: 1
    #1

    general written grammer

    Hi,
    I was wondering if you could kindly help me with the following questions:
    1) Which is correct: Two week intervals or Two weeks intervals
    2) Two weeks old or two week old babies
    3) An HPV vaccine or A HPV vaccine ( i am not sure if i have to use An or A before letters such as H or R when used in an abbreviated format. for instance An ROP or A ROP rep?)
    4) last but not least when using an abbreviation for a plural noun( i.e: RBC ( red blood cells) is it correct to use a plural verb or singular verb? For example RBC carry oxygen or RBC carries oxygen?)

    Thank you so much for your help! I really appreciate your time!

    • Member Info
      • Native Language:
      • English
      • Home Country:
      • England
      • Current Location:
      • England

    • Join Date: Jun 2008
    • Posts: 62
    #2

    Re: general written grammer

    British native, not a teacher.

    Firstly it is spelt grammar!

    1) Two week intervals could be understood as two intervals of one week, so to be clear, you should hyphenate the words: Two-week intervals. You don't need the plural s on week.

    2) Two weeks old is correct. For a baby that is two weeks old, you would say it is a two-week old baby. "Two week old babies" would probably be understood as "two babies, each one week old".

    3) I would say 'An': An hotel, An MPV full of children, an HPV vaccine…

    4) If I were using the term RBC to mean red blood cells (plural), then I would probably make this clear by saying "RBCs carry oxygen" The reader might know that RBC means red blood cell, but they wouldn't be able to assume that the abbreviation was already plural - so add the s.

    Hope that helps.


    • Join Date: Oct 2006
    • Posts: 19,434
    #3

    Re: general written grammer

    WElcome to the forums

    Quote Originally Posted by sara L. View Post
    Hi,
    I was wondering if you could kindly help me with the following questions:
    1) Which is correct: Two week intervals or Two weeks intervals Two-week intervals
    2) Two weeks old or two-week old babies The second is better, but either can be used
    3) An HPV vaccine or A HPV vaccine ( i am not sure if i have to use An or A before letters such as H or R when used in an abbreviated format. for instance An ROP or A ROP rep?) An HIV/An ROP - the pronunciation of the initial letter starts with a vowel - aitch; ar
    4) last but not least when using an abbreviation for a plural noun( i.e: RBC ( red blood cells) is it correct to use a plural verb or singular verb? For example RBC carry oxygen or RBC carries oxygen?) Plural.

    Thank you so much for your help! I really appreciate your time!
    .

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