Make the subject and verb agree when words intervene between them
The grammatical number of the subject does not change with the addition of expressions beginning with such words as the following: accompanied by, along with, as well as, in addition to, including, no less than, not to mention, together with
Subjects joined by and are usually plural
Singular subjects joined by or, either...or, neither...nor take a singular verb
If one subject is singular and one is plural, the verb agrees with the nearer subject
The verb also agrees with the nearer subject in person
Do not let inverted word order cause you to make a mistake in agreement
When used as subjects, such words as each, either, one, everybody, and anyone regularly take singular verbs
Every or each preceding singular subjects joined by and calls for a singular verb
Collective nouns take a singular verb when they refer to the group as a unit
Collective nouns take a plural verb when they refer to individuals or parts of the group
Some nouns (such as athletics, politics, series, deer, and sheep) can be either singular or plural depending on meaning