Question

texto resumido sobre o verbi to be . Com exemplos se puder. e contendo sobre sua forma Afirmativa, Interrogativa e Negativa, PFV

Answer 1

Verb to be é quando usamos para dizer ser ou estar.
Ou seja, quando estamos em algum lugar, quando temos algum sentimento, ou quando sou algo.
Na Affirmative usamos esta forma:
I am — I’m
You are — You’re
He is — He’s
She is — She’s
It is — It’s
We are — We’re
You are — You’re
They are — They’re

Lembrando que o primeiro You é no singular, e o segundo é no plural.

Na Negative é só adicionar o NOT:
I am not — I’m not
You are not — You’re not — You aren’t
He is not — He’s not — He isn’t
She is not — She’s not — She isn’t
It is not — It’s not — It isn’t
We are not — We’re not — We aren’t
You are not — You’re not — You aren’t
They are not — They’re not — They aren’t

Na Interrogative nos apenas trocamos a pessoa e o complemento de lugar:
Am I?
Are You?
Is He?
Is She?
Is It?
Are We?
Are You?
Are They?

Exemplos:

I’m hungry. (feeling, estar)
You’re not a lawyer. (profession, ser)
Are they at school? (place, estar)