The verb "attend" can be singular or plural depending on the subject it is paired with. For example, "she attends" is singular while "they attend" is plural.
It's a verb so it can't really be singular or plural, but it has to be the verb of a singular subject.
Singular. Plural is: they are, have and do.
As an auxiliary verb will is without number: He will go; they will go. As a main verb, it may be singular or plural: I will this to my heirs; they will it to their heirs.
"Has" is a verb that is paired with a singular noun or pronouns as in: Bob has,he has, she has or it has. Plural nouns would use have, such as, The people have, we have, they have, you (all) have. Of course , have is also used with the singular pronoun I , I have.
"Is" is the singular form of the verb "to be," used with singular subjects. "Are" is the plural form used with plural subjects.
Pronoun-verb agreement requires a correct match between a pronoun and a verb based on number (singular or plural).A singular pronoun requires a verb for a singular subject.Example: She is expected at noon. (singular subject pronoun)A plural pronoun requires a verb for a plural subject.Example: They are expected at noon. (plural subject pronoun)
No. The verb or helper verb "has" is singular. Plural nouns (and I and you) use "have."
It depends on whether you are using the word series (pl series) in the singular or plural, e.g. there were ten series (plural) of 'Friends'; I enjoyed series one (singular) the most
Verbs cannot be singular or plural. Requires is after singular nouns.
As an auxiliary verb will is without number: He will go; they will go. As a main verb, it may be singular or plural: I will this to my heirs; they will it to their heirs.
Are is a plural present be verb. We are walking home. Were is a plural past be verb. They were looking for me. Have is a plural main verb or auxiliary verb. They have a dog. They have had a dog for years.