Yes, adding an apostrophe to the end of the plural noun knives forms the plural possessive noun knives'.
Example: the knives' prices = the prices of the knives
The knives' handles were made of rare wood.
The knives' blades were dull.
The knives' drawer got stuck.
The singular possessive form for the noun knife is knife's.The plural form is knives; the plural possessive form is knives'.
The correct form is "its" for the possessive form in the plural. "Its" is used for both the singular and plural possessive forms, without an apostrophe.
Knives' is the plural possessive form of knife.
The plural possessive form of "school" is "schools'".
The plural is schools. The plural possessive form is schools' (apostrophe only).
"Its" is the possessive form, used to show that something belongs to "it." The plural form of "it" is "they."
The plural is composers and the plural possessive form is composers' (just an apostrophe added).
The plural of wife is wives.The plural possessive form of wives is wives'(apostrophe after the S).The singular possessive form is wife's.
The plural possessive form is possessives'.The possessives' forms are recognized by the apostrophe -s or the -s apostrophe at the end of the word.
The plural of governor is governors (no apostrophe necessary). The plural possessive form of governor is governors'.
The plural of address is addresses and the plural possessive is addresses' (apostrophe only).
The possessive is the standard form - playmate's - and the possessive of the plural can use only the apostrophe - playmates' - in accordance with standard usage.