The singular possessive form is herd's.
The singular possessive form is heart's; the plural possessive form is hearts'.
The singular possessive form is lesson's.
The singular possessive form is grotto's.
Mary's is the singular possessive form.
Amos’s bell is singular possessive. Amos’ bell implies there is more than one Amos.
Amos’s bell is singular possessive. Amos’ bell implies there is more than one Amos.
The singular possessive form is week's.
The singular possessive form of "classmate" is "classmate's."
The singular possessive form of "gypsy" is "gypsy's."
The singular possessive form of county is county's.
The singular possessive form of "countries" is "country's".
The singular form is goose; the singular possessive form is goose's.The plural form is geese; the plural possessive form is geese's.
singular possessive: boy'splural possessive: boys'
The singular possessive form is aircraft's.
The singular possessive form is speculum's.
The singular possessive form is contralto's.