The document provides examples for changing nouns to their plural forms. It gives the singular form, followed by the plural using "they're" or "you're". Nouns like lawyer, mechanic, nurse, cook, doctor, tourist, student, secretary, teacher, and friend are changed to their plural forms by adding an "s". Nouns like city, school, class, dog, and watch are made plural by changing to cities, schools, classes, dogs, and watches respectively.

1. STUDY 3:
Plurals of nouns: We’re Brothers.
I’m a lawyer. ………………………………………………………We’re lawyer.
You’re a mechanic. ………………………………………………..You’re mechanics.
He’s a cook. …………………………………………………………They’re cooks.
She’s a nurse. ………………………………………………………They’re nurses.
It’s a city. …………………………………………………………….They’re cities.
It’s a watch. ………………………………………………………….They’re watches.
Practice:
Change to the plural.
He’s a doctor…………………………………………………………..They’re doctors.
I’m a tourist. ………………………………………………………….We’re tourists.
It’s a school. …………………………………………………………They’re schools.
I’m a student. ………………………………………………………..We’re students.
She’s a nurse. ………………………………………………………..They’re nurses.
It’s a dog. …………………………………………………………….They’re dogs.
He’s a friend. ………………………………………………………….They’re friends.
It’s a city. ………………………………………………………………They’re cities.
You’re a secretary. ……………………………………………………You’re secretaries.
I’m a lawyer. …………………………………………………………..We’re lawyers.
It’s a class. ……………………………………………………………They’re classes.
You’re a teacher. …………………………………………………….You’re teachers.
He’s a cook. …………………………………………………………..They’re cooks.
It’s a watch. …………………………………………………………..They’re watches.