The plural possessive of "speakers" is "speakers'."
speakers
The possessive form of the plural noun speakers is speakers'.Example: I could not untangle the speakers' cables.
The plural form of the noun speaker is speakers.The plural possessive form is speakers'.Example: You're third on the speakers' schedule.
The plural is relatives. The plural possessive is relatives'.
The plural is lads. The plural possessive is lads'.
The plural form is Mexicans. The plural possessive is Mexicans'.
The possessive form of the plural noun speakers is speakers'.Example: I could not untangle the speakers' cables.
The plural form of the noun speaker is speakers.The plural possessive form is speakers'.Example: You're third on the speakers' schedule.
The plural is relatives. The plural possessive is relatives'.
The plural is lads. The plural possessive is lads'.
The plural form is Mexicans. The plural possessive is Mexicans'.
The plural form is echoes. The plural possessive is echoes'.
The plural form is suffixes. The plural possessive is suffixes'.
The plural possessive of stepsister is stepsisters'.
Coaster's is singular possessive. The plural is coasters, the plural possessive is coasters'.
The plural possessive is pals'.
The plural possessive of bandit is bandits'.
The plural of senior is seniors. The plural possessive of seniors is seniors'