However, there are some guidelines for deciding which form of verb (singular or plural) should be used with one of these nouns as a subject in a sentence. So far, we have worked with compound subjects whose different parts are either singular or plural See the section on Plural for additional help with subject-verb concordance. They do NOT apply to other helping verbs as can, could, should, should, can, could, could, would, would, should. In informal writings, none, and both sometimes take on a plural veneer, when these pronouns are followed by a prepositional sentence that begins with. This is especially true for constructions that ask questions: “Did you read the two clowns on the order?” “Do you both take this seriously?” Burchfield calls this “a conflict between fictitious agreement and real agreement.”