A pronoun should agree in number and gender with its antecedent noun. Note that “each” and “neither” take a singular verb in Canadian usage.
- Each of the students in the class gives two presentations.
- Neither of the students was present on Monday.
Given the advent of new pronouns, we also need to think about using the pronouns that are appropriate for (and preferred by) the person to whom or about whom we are speaking. See my reflections on the singular “they.”