subject verb agreement

• Two singular subjects connected by either-or or neither-nor require a singular verb, but when a singular and plural subject are connected, use a plural verb
• A compound subject joined by or, or nor requires a singular verb if each part is singular. If the parts differ in number or person, the verb agrees with the subject nearer to it.
• When one of your two subjects is ‘I’, put it second and follow it with the singular verb ‘am
• Compound subjects joined by and require a plural verb, but when the parts refer to the same person or have some close relation, they take a singular verb. Also, if the parts of the compound subject are modified by each, or no, a singular verb is required
• Sometimes the subject is separated from the verb by words such as along with, as well as, besides, or not. Ignore these expressions when determining whether to use a singular or plural verb.
• The indefinite pronouns each, everyone, one, everybody, anyone, anybody, someone, and somebody are singular and require singular verbs.

  Do not be misled with what follows of
• With words that indicate portions – percent, fraction, part, majority, some, all, none – look at the noun in your phrase to determine whether to use a singular or plural verb.
• When either and neither are subjects, they always take singular verbs.
• The words here and there have generally been labeled as adverbs even though they indicate place. In sentences beginning with here or there, the subject follows the verb.
• Use a singular verb with sum of money or period of time.
• Sometimes the pronoun who, that, or which is the subject of the verb in the middle of the sentence. The pronouns who, that, which become singular or plural according to the noun directly in front of them.
• Collective nouns such as team and staff may be either singular or plural depending on their use in the sentence.