Let’s first focus on singular and plural
– A word that refers to one person, place, thing, or idea is SINGULAR in number.
– A word that refers to more than one is PLURAL.
– Singular subjects take singular verbs, for example- Earline attends college. [The singular verb attends agrees with the singular subject Earline.]
– Plural subjects take plural verbs, for example- They attend college. [The plural verb attend agrees with the plural subject They.]
• Note: A gerund phrase or an infinitive phrase used as a complete subject takes a singular verb, not a plural verb. For instance: Working with you and the others has been a privilege. [ The singular verb is HAS BEEN, WORKING is the subject. WORKING HAS BEEN A PRIVILEGE.
• To finish our science projects is our goal. [The singular verb is IS, TO FINISH is the subject.] TO FINISH IS OUR GOAL.