Here are the basic rules of subject-verb concordance. In the present tense, if the subject is a singular noun or pronoun, the verb takes the marker -s. 15. Mathematics (is) John`s favorite subject, while civics (is, are) Andreas` favorite subject. If the subject is a pronoun, the verb must also personally agree. English pronouns fall into three categories: first person, second person and third person. Readtheory.org 2010 englishforeveryone.org 2008 Name date Exercise 27 Examination of the simple form of the past and the progressive form of the past. Fill in the spaces with the correct form of the verb in parentheses in the simple form of the past or the form of the past. Last. Description: “The poet and singer” suggests the singular; Therefore, “is” correct. .