The possessive form for the singular noun friend is friend's.
Example: I borrowed my friend's bicycle.
The possessive form for the singular noun friend is friend's.Example: I borrowed my friend's bicycle.
The singular possessive form is a friend's photo.
The singular possessive form for the letter of a friend is a friend's letter.Example: My friend's letter was an invitation to come for a visit.
The singular possessive form is your friend'sbaby.
The possessive form is Amos'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.
The singular possessive form is speculum's.
The singular possessive form is frontiersman's.
The singular possessive form is aircraft's.
The singular possessive form is week's.