A1 — Lesson 4: To be (negative)

Objetivo: reconocer la forma larga negativa (I am not / you are not / he is not…) y elegir una contracción correcta (I'm not / you aren't / he isn't…).
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🗣️ Traducción rápida al español

El verbo to be significa ser o estar. En negativo usamos not. Practica estas equivalencias:

I am not → no soy / no estoy
You are not → no eres / no estás (ustedes: no son / no están)
He is not → él no es / no está
She is not → ella no es / no está
It is not → no es / no está (cosa/animal)
We are not → no somos / no estamos
They are not → no son / no están

⚙️ Contracciones (formas cortas) — reglas clave

En inglés, “not” suele contraerse de dos maneras: You're not / You aren't, He's not / He isn't, etc.

Nota importante: I am not casi siempre se usa como I'm not (natural y común).

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

They are not → They're not / They aren't

Ejemplos:
• She is not here. → She's not here / She isn't here.
• They are not students. → They're not students / They aren't students.