Mastering 'It's' and 'It Isn't' (Be: Present Simple) - A1 English Grammar — A1 English grammar lesson by Langcom

Mastering ‘It’s’ and ‘It Isn’t’ (Be: Present Simple) – A1 English Grammar

Raúl Maguiña

Fundador de Langcom | Examinador de Cambridge y del SIELE

septiembre 7, 2026

A1✏️ Gramática⏱️ 4 minutos de lectura📅 Updated septiembre 2026
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It’s y it isn’t are short forms of it is y it is not. We use them to talk about singular things, animals, or ideas. It’s is for positive statements, like It’s a new car. It isn’t is for negative statements, like It isn’t old. These forms help you speak more naturally and quickly in English. They are very common when describing objects, places, or situations. Remember to always use it when you are talking about one non-human thing or an idea.

What Does ‘It’ Mean?

It is a pronoun. We use it to talk about:

  • One thing: It’s a book.
  • One animal: It’s a cat.
  • One idea or situation: It’s interesting.

We do not use it for people. For people, we use he (for a man/boy) or she (for a woman/girl).

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How Do We Use 'It's'?

It's es la forma abreviada de it is. Utilizamos it's for positive sentences.

  • To describe something: It's big.
  • To say what something is: It's a phone.
  • To talk about the weather: It's sunny.

Uso de it's makes your English sound more natural, especially in speaking.

How Do We Use 'It Isn't'?

It isn't es la forma abreviada de it is not. Utilizamos it isn't for negative sentences.

  • To say something is not true: It isn't correct.
  • To say what something is not: It isn't a car.
  • To say something is not in a place: It isn't here.

You can also say it's not, which means the same as it isn't. Por ejemplo, It's not cold.

Asking Questions with 'Is It...?'

To ask a question about a singular thing, animal, or idea, we put is antes de it.

  • Is it a new house?
  • Is it expensive?
  • Is it in Spain?

These are 'Yes/No' questions because the answer is usually 'Yes' or 'No'.

Giving Short Answers with 'It Is' / 'It Isn't'

When someone asks a 'Yes/No' question with Is it...?, you can give a short answer:

  • For 'Yes': Yes, it is.
  • For 'No': No, it isn't.

It is important to use the full form it is in positive short answers. Do NOT use Yes, it's.

Summary of 'Be' Forms for 'It' and 'They'
Positivo (+) Negativo (-) Question (?) Short Answer (+) Short Answer (-)
it It's a new house. It isn't a new house. Is it a new house? Yes, it is. No, it isn't.
they They're old houses. They aren't old houses. Are they old houses? Yes, they are. No, they aren't.

Ejemplos

  • It's a beautiful day today.
  • It isn't a difficult question.
  • Is it your first time here?
  • No, it isn't. I was here last year.
  • It's very hot in summer.
  • It isn't far from the city center.

Práctica

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Errores habituales de los hispanohablantes

Spanish speakers often make these mistakes:

  • Omitting 'it': In Spanish, you can often leave out the subject pronoun. In English, you must always use it when talking about a thing, animal, or idea.
    Is good.
    It's good.
  • Using 'is' without 'it' in questions:
    Is in Canada?
    Is it in Canada?
  • Using contractions in positive short answers:
    Yes, it's.
    Yes, it is.

Preguntas más frecuentes

When do I use 'it's' and when do I use 'its'?

It's is a contraction of it is o it has. Por ejemplo, It's a book. Its is a possessive pronoun, meaning 'belonging to it'. For example, The dog wagged its tail.

Can I use 'it' for a baby?

Sometimes, people use it for a baby if they don't know the baby's gender. For example, It's a beautiful baby! However, it's more common and polite to use he o she if you know the gender, or they if you don't.

Is 'it's not' the same as 'it isn't'?

Sí, it's not y it isn't mean exactly the same thing. Both are common in spoken and informal written English. For example, It's not cold y It isn't cold Ambas son correctas.

Lecciones relacionadas

Sobre el autor: Raúl Maguiña

Raúl Maguiña es el director de la Asociación Educativa Langcom, un centro autorizado de preparación para el examen Cambridge English en tu país. Con más de una década de experiencia en la enseñanza de idiomas y la certificación internacional, ha ayudado a miles de estudiantes, profesores e instituciones educativas de 25 países a conseguir las certificaciones de inglés de Cambridge, IELTS, TOEFL y Michigan.

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