This document discusses the uses of the verb "to be" in English and its Spanish translations of "ser" and "estar". It provides the conjugations of the present tense of "to be" in affirmative, negative, and interrogative forms. Additionally, it explains that "to be" is used to talk about someone's state by following it with an adjective, convey personal information like name, age, nationality, and profession, and describe people physically and in terms of personality by following it with an adjective.

1. Verbo To Be (Ser, Estar)
Este verbo es uno de los más importantes en inglés y se
traduce en español por “Ser” y “Estar”. Veamos el presente
de este verbo en todas sus formas: afirmativa, negativa e
interrogativa.

2. PRESENTE DE “TO BE”

Afirmativa 
Negativa
I am (I'm) I am not (I'm not)
You are (you're) You are not (you aren't)
He is (he's) He is not (he isn't)
She is (she's) She is not (she isn't)
It is (it's) It is not (it isn't)
We are (we're) We are not (we aren't)
You are (you're) You are not (you aren't)
They are (they're) They are not (they aren't)

3. Presente del verbo “To Be”

Interrogativa 
Respuestas breves
Am I? Yes, I am/ No, I'm not
Are you? Yes, you are/ No, you aren't
Is he? Yes, he is/ No, he isn't
Is she? Yes, she is/ No, she isn't
Is it? Yes, it is/ No, it isn't
Are we? Yes, we are/ No, we aren't
Are you? Yes, you are/ No, they aren't
Are they? Yes, they are/ No, they aren't

4. Usos del verbo “To Be”
Usamos el verbo To Be para hablar sobre el estado de algo o
de alguien. En este caso, siempre está seguido de un
adjetivo:
I am happy ( Estoy o soy feliz)
He is tired ( Está cansado)

5. Otro usos de “Be”
También usamos “Be” para transmitir información personal como
nuestro nombre, edad, nacionalidad y profesión.
He is Paul
He is 45 years old
He is British
He is a pilot

6. También usamos el verbo “To Be” para describir a personas, tanto
físicamente como su personalidad. En este caso, de nuevo, el
verbo “To Be” estará seguido de un adjetivo:
Peter is tall.
They are funny.