The plural form of eight is eights.
Example: there are a lot of eights in the number 482,886,808.
The possessive form of the plural noun musicians is musicians'.example: The musicians' rehearsal is scheduled for eight.
The noun 'proof' is an uncountable noun except as a word for a printing proof or a photographic proof.The plural form of the noun 'proof' is proofs.The plural possessive form is proofs'.Example: the proofs' printout is eight pages.
There is no plural form. Do and Do not are verbs
The plural form of him, her, or it is them. (objective pronouns)
Bridges is the plural form of bridge.
The plural form of "is" is "are."
The plural form of "I" is "we."
The plural form of "was" is "were."
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.