If the verb does not match the subject, write the correct form of the verb. It`s true. In the first sentence, you need to add an -s to the verb (sings) because the subject (Merdine) is singular. Runs is the singular form, while run is the plural form. Below are examples of subject-verb matches that show how plural sentences work: Very rarely a collective subject can accept a plural verb: in one of the subject-verb concordance examples, you can remove the sentence from the subject and the false sentences became correct. For example, the firewood declaration makes the campfire the most durable grammatically correct….