The possessive form of the noun staff is staff's.
Example: Our staff's picnic is scheduled for Friday.
The possessive form of the plural uncountable noun headquarters is headquarters'.example: The headquarters' staff will be here for training on Monday.
The possessive form of "he" is "his": He did his homework after dinner.
The word 'staff' is a singular, uncountable noun as a word for the people who work for a particular company, organization, or institution; employees as a group. The noun 'staff' (the plural form is staffs) is a countable noun as a word for the set of lines on which music is written; a long stick used for making walking easier on rough terrain; a stick carried by officials on formal occasions; a flagpole.
No, it is singular, the possessive form of it is its. The plural form of it is they or them, and the possessive form is their.To answer the question directly: there is no such word as ITS'.
The possessive form is lawyer's.
The possessive form is whistle's.
The possessive form is posse's.
The plural possessive form is Luis's.
The singular possessive form of the noun "it" is "its". Note that there is no apostrophe in the possessive form of "it". The apostrophe is only used after "it" when used as a contraction of "it is".
The singular possessive form is heart's; the plural possessive form is hearts'.
The possessive form for the noun science is science's.
The possessive form for the noun freedom is freedom's.