Actually, the word "banks" is already in plural form. We use -s form to nouns that have more than one no. Example: notebook-notebooks some changes in spelling Example: mouse-mice
The possessive form of the singular noun bank is bank's.The plural form of the noun bank is banks.The plural possessive form is banks'.Examples:My bank's location is near my office. (singular)Both banks' rates are exactly the same. (plural)
Banks deposit
Banks is already plural. The singular is bank.
The plural form of the noun river is rivers.The plural possessive form is rivers'.Example: The Monongahela and Allegheny Rivers' confluenceforms the Ohio River.
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 "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."