The plural form for the proper noun Charles is Charleses.
Examples: Both of the Charleses are in my class this year.
The plural form for the noun Charles is Charleses; the plural possessive form is Charleses'.Example: Both Charleses are in my class but the Charleses' desks are not together.
The plural form of the proper noun Charles is Charleses.The plural possessive form is Charleses'.Example: The two Charleses' last names are White and Green.
The plural form for the demonstrative pronoun this is these.
The plural form of the word inferno is infernos.
The plural form is ranches.
There is no plural form for the word, countries. This word itself is a plural.
There is no plural word for if.
The plural form is data.
The plural form of the word "baby" is "babies."
The plural form for the word 'pioneer' is pioneers.
The plural form of the word "pharynx" is "pharynges."
The plural form of vow is vows.