The possessive noun Carlos's is the singular possessive form.The plural form of the noun Carlos is Carloses.The plural possessive form is Carloses'.Examples:I like Carlos's new bicycle.The Carloses' children are twins.
The word bikes is the pluralform of the singular noun bike.The singular possessive form of the noun bike is bike's.The plural possessive form of the noun bikes is bikes'.Examples:My bike's color is yellow.All of our bikes' colors are yellow.
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 singular possessive form is heart's; the plural possessive form is hearts'.
The plural form is founders. The plural possessive is founders'.
The plural form for the noun sergeant is sergeants; the plural possessive form is sergeants'.
The singular possessive form for the noun knife is knife's.The plural form is knives; the plural possessive form is knives'.
The noun 'sister' is not plural and is not possessive.The plural form is sisters.The possessive form is sister's.The plural possessive form is sisters'.
The singular form is goose; the singular possessive form is goose's.The plural form is geese; the plural possessive form is geese's.
The plural possessive form of "cherubim" is "cherubim's."
The plural form is valleys. The plural possessive is valleys'.
The plural form is squirrels. The plural possessive is squirrels'.