Both the singular and plural are the same, so it is 'have'. E.g. 'I have' (singular), 'we have', 'they have' (plural).
When used as a noun, the plural of have (meaning a person who has possessions; a trick or swindle (old slang)) is haves. Its most common usage is in the expression 'haves and have-nots'
The form of this verb used with plural subjects is "have". With singular subjects it can be "have" (I have, you have) or "has" (he has, she has, it has).
The present tense conjugation is:
First second and third person, singular: I have, you have, he (she or it) has
First second and third person, plural: we have, you have, they have.
Example: This book has a red cover. Those books have brown covers.
The plural forms of the personal pronoun 'it' are they as the subject of a sentence or a clause, and them as the object of a verb or a preposition.
Examples:
A horse stood in the field. It looked at us as we waved to it. (singular)
The horses stood in a field. They looked at us as we waved to them. (plural)
The word 'they' is a plural form.
The word 'they' is a personal pronoun, a word that takes the place of a plural noun (or two or more nouns) for two or more people or things.
Examples:
My parents are coming to visit. They will arrive on Friday. I look forward to seeing them.
The Declaration of Independence, Constitution and Bill of Rights, collectively called as the Charters of Freedom. They are the founding documents of the United States. There are copies of them you can read on the National Archives website.
The plural form for the noun arch is arches.
The noun 'fungi' is the plural form of the noun 'fungus'.
The plural form of the noun defendant is defendants.The plural possessive form is defendants'.Example: All of the defendants' lawyers have spoken to their clients.
The plural form of inadvertence is inadvertences.
The plural form of itch is itches.
The plural form of "do" is "do" and the plural form of "don't" is "don't." These words do not change in the plural form when used in a sentence.
The plural form of him, her, or it is them. (objective pronouns)
Bridges is the plural form of bridge.
The plural form of "was" is "were."
The plural form of "I" is "we."
The plural form of "is" is "are."
The plural form of mouth is mouths. The plural form of month is months. The Mounth is a range of hills in Scotland and does not have a plural form.
"Groceries" is the plural form of "grocery."
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.
The plural form of the demonstrative pronoun 'that' is those.
The plural form of "trench" is "trenches."
The plural form of "meter" is "meters."