The plural form of the noun church is churches.
The plural possessive form is churches'.
example: The project was made possible by our local churches' contributions.
The plural possessive form for "church's" is "churches'".
The plural form for parish is parishes; the plural possessive form is parishes'.
The plural form for the noun pilgrim is pilgrims; the plural possessive form is pilgrims'.
The plural possessive of "priest" is "priests'."
The plural possessive form of "goddess" is "goddesses'."
The plural possessive form of "lord" is "lords'."
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 of rose is roses. The plural possessive is roses'.
The plural form is homes; the plural possessive is homes'.
The singular possessive is biker's; the plural possessive is bikers'.