2. Affirmative form
Subject Verb Abreviation
I am I’m
You are You’re
He/She/It is He’s/She’s/It’s
We are We’re
You are You’re
They are They’re
I am from England, I’m 33 years old, my name is David
my name = “it”

3. Negative form
Subject Verb Abreviation
I Am not I’m not
You Are not You aren’t
He/She/It Is not He/She/It isn’t
We Are not We aren’t
You Are not You aren’t
They Are not They aren’t
I’m not from Mexico, It isn’t my native country.
(Mexico)

4. Interrogative form
Verb Subject
Am I?
Are you?
Is he/she/it?
Are we?
Are you?
Are they?
Are you from Mexico? Is he American?
Notice: The position of the subject and verb is reversed in the interrogative form