This document provides 10 rules for subject-verb agreement in English grammar:
1. A verb must agree with its subject in number - singular subjects take singular verbs and plural subjects take plural verbs.
2. Words between the subject and verb do not affect agreement.
3. Subjects like "each", "everyone", and "nobody" are always singular.
4. Words like "some", "any", "all", "most" can be singular or plural depending on the sentence.
5. Subjects joined by "and" are plural, while those joined by "or" or "nor" take a verb agreeing with the last subject.