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InglésInglés25 views·Updated Jun 22, 2026·6 pages

Guía Completa de Reglas Gramaticales

C
Constanza Valenzuela@constanza_el4cc

¿Confundido con las reglas gramaticales del inglés? Tranquilo, aquí tienes...

1
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Presente Simple del Verbo "to Be"

El verbo "to be" ser/estarser/estar cambia según el sujeto que uses. En afirmativo usamos: I am, You/We/They are, He/She/It is. Por ejemplo: I am from Chile o Raul is a professional basketball player.

Para formar preguntas con "to be", simplemente invertimos el orden: Am I from Chile? o Is Raul a professional basketball player?

Para hacer oraciones negativas, agregamos "not" después del verbo: I am not from Chile (o I'm not) y Raul is not a professional basketball player (o isn't).

💡 Recuerda que el verbo "to be" es especial y no sigue las mismas reglas que los demás verbos en inglés. ¡No necesita auxiliares como "do" o "does"!

La estructura básica para oraciones afirmativas con otros verbos es: Sujeto + verbo + complemento. Por ejemplo: My brother and I travel to Paris.

2
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Presente Simple de Otros Verbos

En presente simple añadimos -s al verbo cuando el sujeto es he, she, it (o cualquier sustantivo singular). Por ejemplo: Juanita likes playing basketball o The plant needs water.

Para hacer preguntas, usamos los auxiliares "do" (para I, you, we, they) o "does" (para he, she, it): Do you speak English? o Does Jaime read a book?

En oraciones negativas usamos "don't" o "doesn't" seguido del verbo en infinitivo: Ana and Pedro don't live in Ancud o Javier doesn't read a book.

🔑 Cuando uses "does" en preguntas o "doesn't" en negativas, el verbo principal siempre va en infinitivo sinssin -s.

El verbo "to be" en pasado tiene solo dos formas: "was" (para I, he, she, it) y "were" (para we, you, they). Por ejemplo: I was a student 20 years ago o Juan and Pepe were in class last week.

3
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Pasado Simple

El pasado simple en oraciones afirmativas (excepto "to be") se forma con el sujeto + verbo en pasado + complemento. Para verbos regulares añadimos -ed: Ana listened to rock music. Para irregulares cambia la forma: Gala wrote notes last class.

Para hacer oraciones negativas en pasado, usamos "didn't" + verbo en infinitivo: Feña didn't study for the test o Carla didn't come to class.

Las preguntas en pasado se forman con "did" + sujeto + verbo en infinitivo: Where did you buy your phone? o Did Dani eat lunch?

⚠️ ¡Atención! En preguntas y negativas de pasado simple, el verbo principal siempre va en infinitivo después de "did" o "didn't".

Cuando usamos dos verbos juntos, el segundo puede llevar -ing o "to" + infinitivo: Alan hates to eat beans / Alan hates eating beans o Amir likes playing football / Amir likes to play football.

4
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Reglas Importantes de Escritura

Los meses, días y nacionalidades se escriben siempre con letra mayúscula en inglés: I was born in May, I have English on Thursdays o My mom is Chilean.

Un verbo infinitivo es la forma base del verbo sin cambios. Recuerda que cuando usas auxiliares, el verbo principal siempre va en infinitivo: Does my dad eat apples?

Todas las oraciones necesitan un sujeto y un verbo. Las oraciones imperativas son la excepción, ya que solo llevan el verbo: Sit down, class! o Turn right!

💡 Los auxiliares como do, does, don't, doesn't, did, didn't, can, may, going to, should, siempre van seguidos de un verbo en infinitivo.

Puedes formar imperativos directos simplemente usando el verbo en infinitivo al inicio de la oración. Son perfectos para dar instrucciones o órdenes.

5
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Adjetivos y Posesivos

Los adjetivos generalmente van antes del sustantivo: It is an extraordinary story. Pero también pueden ir después de un verbo: The story is extraordinary.

Cuando usamos varios adjetivos juntos, seguimos este orden: Cantidad-Opinión-Tamaño-Edad-Forma-Color-Origen-Material-Propósito. Por ejemplo: My grandfather was a nice Chilean man o These are two big red cars.

Para mostrar posesión usamos apóstrofe + s ('s) para dueños singulares y s + apóstrofe (s') para dueños plurales: The girl's boyfriend o The girls' friends.

🔍 ¡Ojo con los adjetivos! A diferencia del español, en inglés los adjetivos no cambian según el género o número del sustantivo.

Algunos adjetivos van seguidos de preposiciones específicas: I am really good at English, He is really bad at basketball o The woman is interested in nature.

6
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Preposiciones y Tiempos Verbales

Si escribes un verbo después de una preposición, debe terminar en -ing: Thank you for inviting me o I'm afraid of speaking in public.

Usamos diferentes preposiciones de tiempo y lugar:

  • In: para meses, años, partes del día, estaciones, vehículos cerrados (in June, in 2014, in the morning)
  • On: para días, fechas, superficies, transporte público (on Monday, on November 20th, on the wall)
  • At: para lugares específicos, horas exactas, festividades (at the airport, at 8 o'clock, at Christmas)

💪 Cuando respondas una pregunta, asegúrate de usar el mismo tiempo verbal que te preguntaron. Esto muestra que dominas realmente el idioma.

Recuerda que la consistencia en los tiempos verbales es crucial. Si alguien te pregunta "Where did you go last week?", debes responder usando pasado simple: "I went to Temuco".

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: Auxiliary Verb

1

Most popular content in Inglés

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Most popular content

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Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user

InglésInglés25 views·Updated Jun 22, 2026·6 pages

Guía Completa de Reglas Gramaticales

C
Constanza Valenzuela@constanza_el4cc

¿Confundido con las reglas gramaticales del inglés? Tranquilo, aquí tienes un resumen práctico con las reglas más importantes que necesitas dominar. Entender estas estructuras te ayudará a construir oraciones correctas y comunicarte con confianza en inglés.

1
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

Presente Simple del Verbo "to Be"

El verbo "to be" ser/estarser/estar cambia según el sujeto que uses. En afirmativo usamos: I am, You/We/They are, He/She/It is. Por ejemplo: I am from Chile o Raul is a professional basketball player.

Para formar preguntas con "to be", simplemente invertimos el orden: Am I from Chile? o Is Raul a professional basketball player?

Para hacer oraciones negativas, agregamos "not" después del verbo: I am not from Chile (o I'm not) y Raul is not a professional basketball player (o isn't).

💡 Recuerda que el verbo "to be" es especial y no sigue las mismas reglas que los demás verbos en inglés. ¡No necesita auxiliares como "do" o "does"!

La estructura básica para oraciones afirmativas con otros verbos es: Sujeto + verbo + complemento. Por ejemplo: My brother and I travel to Paris.

2
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

Presente Simple de Otros Verbos

En presente simple añadimos -s al verbo cuando el sujeto es he, she, it (o cualquier sustantivo singular). Por ejemplo: Juanita likes playing basketball o The plant needs water.

Para hacer preguntas, usamos los auxiliares "do" (para I, you, we, they) o "does" (para he, she, it): Do you speak English? o Does Jaime read a book?

En oraciones negativas usamos "don't" o "doesn't" seguido del verbo en infinitivo: Ana and Pedro don't live in Ancud o Javier doesn't read a book.

🔑 Cuando uses "does" en preguntas o "doesn't" en negativas, el verbo principal siempre va en infinitivo sinssin -s.

El verbo "to be" en pasado tiene solo dos formas: "was" (para I, he, she, it) y "were" (para we, you, they). Por ejemplo: I was a student 20 years ago o Juan and Pepe were in class last week.

3
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

Pasado Simple

El pasado simple en oraciones afirmativas (excepto "to be") se forma con el sujeto + verbo en pasado + complemento. Para verbos regulares añadimos -ed: Ana listened to rock music. Para irregulares cambia la forma: Gala wrote notes last class.

Para hacer oraciones negativas en pasado, usamos "didn't" + verbo en infinitivo: Feña didn't study for the test o Carla didn't come to class.

Las preguntas en pasado se forman con "did" + sujeto + verbo en infinitivo: Where did you buy your phone? o Did Dani eat lunch?

⚠️ ¡Atención! En preguntas y negativas de pasado simple, el verbo principal siempre va en infinitivo después de "did" o "didn't".

Cuando usamos dos verbos juntos, el segundo puede llevar -ing o "to" + infinitivo: Alan hates to eat beans / Alan hates eating beans o Amir likes playing football / Amir likes to play football.

4
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

Reglas Importantes de Escritura

Los meses, días y nacionalidades se escriben siempre con letra mayúscula en inglés: I was born in May, I have English on Thursdays o My mom is Chilean.

Un verbo infinitivo es la forma base del verbo sin cambios. Recuerda que cuando usas auxiliares, el verbo principal siempre va en infinitivo: Does my dad eat apples?

Todas las oraciones necesitan un sujeto y un verbo. Las oraciones imperativas son la excepción, ya que solo llevan el verbo: Sit down, class! o Turn right!

💡 Los auxiliares como do, does, don't, doesn't, did, didn't, can, may, going to, should, siempre van seguidos de un verbo en infinitivo.

Puedes formar imperativos directos simplemente usando el verbo en infinitivo al inicio de la oración. Son perfectos para dar instrucciones o órdenes.

5
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

Adjetivos y Posesivos

Los adjetivos generalmente van antes del sustantivo: It is an extraordinary story. Pero también pueden ir después de un verbo: The story is extraordinary.

Cuando usamos varios adjetivos juntos, seguimos este orden: Cantidad-Opinión-Tamaño-Edad-Forma-Color-Origen-Material-Propósito. Por ejemplo: My grandfather was a nice Chilean man o These are two big red cars.

Para mostrar posesión usamos apóstrofe + s ('s) para dueños singulares y s + apóstrofe (s') para dueños plurales: The girl's boyfriend o The girls' friends.

🔍 ¡Ojo con los adjetivos! A diferencia del español, en inglés los adjetivos no cambian según el género o número del sustantivo.

Algunos adjetivos van seguidos de preposiciones específicas: I am really good at English, He is really bad at basketball o The woman is interested in nature.

6
of 6
Miss Daniela Velásquez Salazar

# Some Grammatical Rules

1. The Present Simple of Verb to Be in Affirmative:

   I am –

   You/we/ They ar

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

Preposiciones y Tiempos Verbales

Si escribes un verbo después de una preposición, debe terminar en -ing: Thank you for inviting me o I'm afraid of speaking in public.

Usamos diferentes preposiciones de tiempo y lugar:

  • In: para meses, años, partes del día, estaciones, vehículos cerrados (in June, in 2014, in the morning)
  • On: para días, fechas, superficies, transporte público (on Monday, on November 20th, on the wall)
  • At: para lugares específicos, horas exactas, festividades (at the airport, at 8 o'clock, at Christmas)

💪 Cuando respondas una pregunta, asegúrate de usar el mismo tiempo verbal que te preguntaron. Esto muestra que dominas realmente el idioma.

Recuerda que la consistencia en los tiempos verbales es crucial. Si alguien te pregunta "Where did you go last week?", debes responder usando pasado simple: "I went to Temuco".

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

Most popular content: Auxiliary Verb

1

Most popular content in Inglés

9

Most popular content

9

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.6/5App Store
4.7/5Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan SiOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha KlichAndroid user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

AnnaiOS user