However, a prepositional sentence inserted between the subject and the verb sometimes complicates the agreement. Subjects and verbs must correspond in number (singular or plural). So, if a subject is singular, its verb must also be singular; If a subject is plural, its verb must also be plural. Note the difference in meaning and therefore in the chosen verb (singular or plural) between the two uses of the ics subnun statistic. 3. Composite subjects that are related by and always in the plural. The subject and the verb are the most important elements of a sentence. The relationship between the subject and the verb depends on two themes: the person and the number. The verb of a sentence must match the subject in terms of person and number. Sentences that begin here/there are structured differently. In this case, the subject comes according to the verb. 4. In the case of compound subjects related by or nor, the verb corresponds to the subject closest to it.