Your question is incomplete as it does not contain any sentences to be analyzed. However, based on the requirements, here's a quick definition of the technical terminology that will be used for the answer:
- Subject: doer of an action
- 'any phrase': this is usually referred to as 'prepositional phrase' and most of the errors related to Concord (subject-verb agreement) are due to these phrases.
For instance, consider the following sentences:
a. This photo of all of my family members (is/are) quite nostalgic.
The correct verb is "is" - not "are".
b. The orchards in my city, which is also known as the city of lights, (is/are) quite mesmerizing.
The correct verb is "are" - not "is".
