Over the past two decades [subject – plural], [Verb – Plural] has a tendency to grow. Exception: If the two nouns do not refer to separate things, but to a single entity, use a singular verb. Careful! An exceptional exception to this rule is the word given. Depending on your discipline, the data is used as singular or plural nouns. A Latin word, data is plural (the singular is the date). For example, in psychology and other scientific disciplines that use data on a daily basis, data takes a plural count: 10. Collective nouns are words that involve more than one person, but are considered singular and adopt a singular verb, such as group, team, committee, class, and family. This result [subject – singular] should be interpreted with caution.