2 GRAMMAR Possessive nouns and adjectives Possessive nouns Al Smith is Kate's boss. Possessive adjectives He is her boss. Larry's colleague is Teresa. We are Sara and Todd's neighbors. Teresa is his colleague. We are their neighbors. She is my teacher. Ms. Ellis is Joe's teacher. Joe is her student. Marty is our classmate. I am Ms. Tan's student. We are Marty's classmates