subject/verb agreement: use of "and"

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alimah
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subject/verb agreement: use of "and"

Post by alimah »

Hi all

Had a question:

" The concentration of A and B is/are measured in terms of ........" : which of "is" or "are" is correct?
Is it like "the concentration of A and concentration of B" (two things, plural) or "concentration" itself (single word)?

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Alan
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Re: subject/verb agreement: use of "and"

Post by Alan »

Singular: is!
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