Verb to be

Use it to talk about existence or location. I am a doctor / I am at the airport.

Use it to make introductions (name, age, profession, origin).

Use it to make descriptions. She is beautiful and smart.

To talk about existence: Pronoun + Verb To Be + Noun. She is a teacher.

To talk about location: Pronoun + Verb To Be + Noun (Place). I am at home.

To describe: Pronoun + Verb To Be + Adjective. That house is expensive.

I am - I am not

You are - You are not

She/He/It is - She/He/It is not

We are - we are not

They are - they are not

Affirmative: Pronoun + Verb to be + Noun/Adjective - She is fancy.

Negative: Pronoun + Verb to be + not + Noun/Adjective - She is not fancy.

Question: Verb to be + Pronoun + Noun/Adjective + ? - Is she fancy?

Affirmative: Yes + , + Pronoun + Verb To Be / Yes, she is.

Negative: No + , + Pronoun + Verb To Be + Not / No, she is not.

I am - I'm

You are - You're

She is - She's

He is - He's

It is - It's

We are - We're

They are - They're