SKILL 41: RECOGNIZE IRREGULAR PLURALS OF NOUNS


Many nouns in English have irregular plurals, and these irregular forms can cause confusion in written expression questions on the TOEFL test. The irregular forms that are the most problematic are plural forms that do not end in s.


In this example the plural noun criteria looks singular because it does not end in “s”; you might incorrectly assume that it is singular because there is no final “s”. However, “criteria” is a plural noun, so the singular verb was used is incorrect. The verb should be the plural form “were used”.




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