The plural form of the singular noun 'company' is companies.
The plural possessive form is companies'.
Example: The companies' names on the directory are in alphabetic order.
The noun company is singular.The plural noun is companies.
The plural possessive form for the noun company is companies'.
The plural form of the singular noun company is companies.The plural possessive form is companies'.Example: Many companies' employees buy stock in their own company.
The plural form of the compound noun 'work company' is:work companies
The noun company to mean a business or an army group is companies.The noun company to mean guests, or accompanying persons is an uncountable noun, it has no plural.
Years'
Uncles'
Painters'
The plural possessive of region is regions'.
The plural form of the noun lynx is lynxes.The plural possessive form is lynxes'.
The plural posessive form is nests'.
singular
The plural form for the noun louse is lice; the plural possessive is lice's.
The knife's edge had been dulled when it hit the rock. Knife's is singular posessive. The knives' edges had been dulled when they hit the rock. Knives' is plural posessive.
Waitresses.
The noun members is the plural form for member; the plural possessive form is members'.
The singular form of the noun is stapler. The singular posessive form of the noun would be stapler's. The plural form of the noun would be staplers. The plural posessive form of the noun would be staplers'