If you're referring to the verb, there's no plural possessive.
The plural of the noun is dice and the possessive of that would "dice's"
For the noun die, a device used in shaping, forming, or cutting in a fabricating process, is dies. The plural possessive form is dies'.For the noun die, one of a pair of game or gambling pieces, the plural is dice. The plural possessive form is dice's.
No, "dice's" is not the correct form of plural possessive. The correct form is "dice'", without the additional "s."
Coaster's is singular possessive. The plural is coasters, the plural possessive is coasters'.
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.
The plural is briefs. The plural possessive is briefs'.
The plural is lads. The plural possessive is lads'.
The plural is trollies. The plural possessive is trollies'.
The plural is relatives. The plural possessive is relatives'.
The plural is stations. The plural possessive is stations'.
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
The singular possessive form is heart's; the plural possessive form is hearts'.
The plural form is homes; the plural possessive is homes'.