The possessive form for the proper noun MacKaye is MacKaye's.
Example: Ms. Mackaye's office is on the second floor.
The possessive form of "he" is "his": He did his homework after dinner.
Ian MacKaye is 5' 9".
Benton MacKaye was born in 1879.
Benton MacKaye died in 1975.
James MacKaye was born in 1872.
James MacKaye died in 1935.
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.
Ian MacKaye was born on April 16, 1962.
Ian MacKaye was born on April 16, 1962.