Present tense verb be: i and you + and ?

1.

1A
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present tense verb be: I and you + and ?
I’m Rob.
I’m = I am
You’re in room 2.
You’re = You are
I’m Rob. NOT Am Rob.
NOT i’m Rob.
?
Am I late?
Yes, you are.
No, you aren’t.
Are you Holly?
Yes, I am.
No, I’m not.
+
?
I’m late.
Am I late?
aren’t = are not