Subject Verb Agreement

1.  Words in middle, or appositives, don’t affect the number of the subject.
2. Indefinite pronouns are singular.
3. Object of the “of-phrase” must be followed.
4. “Some” is taken plural.
5. If correlative conjunctions were used, the closest subject will be followed.
6. A word which normally has “s” on their base form is still singular.
7. Subjects as a body of  knowledge is singular, but subjects as a body, quality, or characteristic is plural.
8. “There” and “Here” can be singular or plural depending on the word net to it.
9. Collective nouns as a group are a singular and plural if it meant separately in the sentence.
10. A work or title is singular.
11. Measurements are singular.
12. Relative pronouns follow the antecedents for plurality.
13. Both “all” and “several” are taken as plurals.
14. Adjectives are plural.