The possessive form of the plural noun whales is whales'.
Example: The tourists were thrilled by the whales' antics, as if they were putting on a performance.
Whales is already in plural form. The singular form is whale.
As "school" is one of the group names for a collection of whales swimming together and as "whales" is the plural of "whale", I would have thought the answer was obvious!
Yes
whalesβ
The plural form of the singular noun whale is whales.The plural possessive form is whales'.
possessive plural word for the bishops: bishops'
The plural possessive noun for "sisters" is "sisters'".
The plural possessive is dimes'.
The plural of niece is nieces. The possessive form for nieces is nieces'.
The plural is queens. The plural possessive is queens'.
The plural is inventories. The plural possessive is inventories'.
The plural is stars. The plural possessive is stars'.
The plural possessive form is glasses'.
The singular possessive form for stockholder is stockholder's.
The singular possessive noun is chair's; the plural possessive form is chairs'.
The singular possessive is author's. The plural possessive is authors'.