The plural of supply is supplies.
There is no plural form. Do and Do not are verbs
The plural form of him, her, or it is them. (objective pronouns)
The plural form of "was" is "were."
The plural form of "I" is "we."
The plural form of "is" is "are."
The plural possessive form of villager's is villagers', for example, "The villagers' water supply had been tainted by runoff from the farms."
Monopolies is the plural form monopoly. A monopoly is when a person or company has complete control of a supply or trade in a market.
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 word 'supply' is both a verb and a noun.The noun 'supply' is a singular, common, abstract noun; a word for an amount or quantity of something that is available to use; materials or provisions stored and dispensed when needed; an amount of a commodity available for meeting a demand or for purchase at a given price; a word for a thing.Example: Our supply of milk and eggs will get us through the week.The noun forms of the verb to supply are supplier, and the gerund, supplying.
Supplies
supplies
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.