The possessive form of the plural noun spies is spies'.
Example: All of the spies' names have been entered into the system.
The plural form for the noun spy is spies.The plural possessive form is spies'.
The plural form for the noun buzz is buzzes; the plural possessive form is buzzes'.
The plural form for the noun university is universities; the plural possessive is universities'.
The plural form of the noun echo is echoes.The plural possessive form is echoes'.
The plural form of the noun mouthful is mouthfuls.The plural possessive form is mouthfuls'.
The plural form for the noun spy is spies.The plural possessive form is spies'.
The possessive form of the plural noun spies is spies'.Example: The agents were able to uncover both spies' identities.
The plural form for the noun buzz is buzzes; the plural possessive form is buzzes'.
The plural form for the noun tree is trees.The plural possessive form is trees'.
The singular possessive form for the noun Phillip is Phillip's.The plural form for the noun Phillip is Phillips; the plural possessive form is Phillips'.The singular possessive form for the noun Phillips is Phillips's.The plural form for the noun Phillips is Phillipses; the plural possessive form is Phillipses'.
The plural form of the noun writer is writers.The plural possessive form is writers'.The plural form of the noun story is stories.The plural possessive form is stories'.The plural form of the noun farmer is farmers.The plural possessive form is farmers'.
Technically, the plural is espionages, but you're more likely (and it's better writing) to say "he was convicted of several acts of espionage" rather than "he was convicted of several espionages".
The plural form for the noun university is universities; the plural possessive is universities'.
pLURAL ; orbits Possessive plural ; Orbits' (NB note the position of the apostrophe).
The plural form for the noun manufacturer is manufacturers.The possessive form for the singular noun manufacturer is manufacturer's.The possessive form for the plural noun manufacturers is manufacturers'.
The plural form of the noun echo is echoes.The plural possessive form is echoes'.
The plural form of the noun mouthful is mouthfuls.The plural possessive form is mouthfuls'.