complete the sentences using the affirmative form to be. Then write the negative and question forms

Affirmative:1. You are in my class.2. It is a nice day.3. I am fourteen years old.4. Your cousins are in Russia.5. We are partners.Negative:1. You aren't in my class.2. It isn't a nice day.3. I'm not fourteen years old.4. Your cousins aren't in Russia.5. We aren't partners.Questions:1. Are you in my class?2. Is it a nice day?3. Am I fourteen years old?4. Are your cousins in Russia?5. Are we partners?