Subject-verb agreement is one of the essential rules of grammar that writers and editors must master to ensure that their sentences are clear, concise, and error-free. The subject-verb agreement rubric is a tool that helps writers and editors evaluate whether the subject and the verb in a sentence are grammatically correct and match each other in number.

The subject of a sentence is the person, place, or thing that the sentence is about, while the verb is the action or state of being that the subject is doing or undergoing. The subject and the verb must agree in number, meaning that if the subject is singular, the verb must be singular, and if the subject is plural, the verb must be plural.

For example, consider the following sentences:

1. The cat sit on the mat.

2. The cats sit on the mat.

In sentence 1, the subject (cat) is singular, but the verb (sit) is plural, which makes the sentence incorrect. In sentence 2, both the subject (cats) and the verb (sit) are plural, which makes the sentence correct.

The subject-verb agreement rubric evaluates whether the subject and the verb in a sentence match in number. The rubric typically consists of a checklist of items that writers and editors must consider when evaluating a sentence`s subject-verb agreement. Some of the items that the rubric may include are:

1. Singular and plural subjects

2. Collective nouns

3. Indefinite pronouns

4. Compound subjects

5. Inverted sentences

6. Quantifiers

7. Phrases and clauses

8. Parenthetical expressions

9. Interjections

By using the subject-verb agreement rubric, writers and editors can identify and correct errors in their sentences and improve their writing`s clarity and effectiveness. The rubric serves as a guide to ensure that all the sentences in a piece of writing are grammatically correct, and the subject and the verb match each other in number.

In conclusion, the subject-verb agreement rubric is an essential tool for writers and editors who want to ensure that their sentences are clear, concise, and grammatically correct. By mastering the rules of subject-verb agreement and using the rubric, writers and editors can create error-free, effective writing that engages and informs readers.