Question

When checking for subject-verb agreement, you want to identify the... question 2 options: the appositive phrase the simple subject the negative phrase the prepositional phrase?

Answer 1

In order to find out the subject-verb agreement, you need to be able to identify "the simple subject" of your sentence first. The subject and verb must agree in number: both must be singular, or both must be plural.
I hope this answer helps.