If the proper noun Stevensons is a singular form, the singular possessive form is Stevensons's.
example: Mr. Stevensons's classroom is at the end of the hall.
If the proper noun Stevensons is the plural form, the plural possessive form is Stevensons'.
example: The Stevensons' house is the one with the blue shutters.
Stevens'
The possessive form of "he" is "his": He did his homework after dinner.
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 for "lawyer" 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 is subsidiary's.
The possessive form of "synopsis" is "synopsis's" or "synopsis'."
The possessive form for the noun freedom is freedom's.
The possessive form is my sister's friend.