WORDS THAT ARE EITHER SINGULAR OR PLURAL SUBJECT:

    1. take singular verbs when they refer to a unit or quantity
      1. Some of the money was missing. (a bag of money)
    2. take plural verbs when they refer to number, amount or individuals
      1. Some of the gold coins were missing. (a series of coins)
    3. "NONE":

To study pronoun/antecendent agreement, please go to the next page.