The possessive form of the singular noun trip is trip's.
Example: We were really sorry to come to our trip's end.
It is desert's.
trip of the manager - manager's trip
The singular form of the plural noun players is player.The singular possessive for is player's.example: The player's shoestring came loose and caused him to trip.
The singular possessive form is week's.
The singular possessive form of "classmate" is "classmate's."
The possessive form is Amos's.
The singular possessive form of "gypsy" is "gypsy'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.
The singular possessive form of county is county's.
Quantum is singular, not singular possessive. The singular possessive form is quantum's.
singular possessive: boy'splural possessive: boys'