B1 Verb Moods 12 min read Fácil

Can: Expresar habilidad (Can)

Dominar can te abrirá las puertas para comunicarte con confianza sobre tus habilidades y hacer peticiones diarias.

Grammar Rule in 30 Seconds

Use 'can' to talk about skills, physical abilities, or things you know how to do right now.

  • No 'to' after can: 'I can swim', not 'I can to swim'.
  • No '-s' for he/she/it: 'She can sing', not 'She cans sing'.
  • Use 'can't' for negatives: 'I can't drive' is the standard contraction.
👤 + can + 🏃‍♂️ (Base Verb)

Overview

¿Puedes hacer un mortal hacia atrás? ¿O tal vez solo hornear un pan de masa madre decente? De cualquier manera, estás usando can.
Esta pequeña palabra es el superpoder definitivo en inglés. Es la herramienta principal para hablar sobre habilidades y destrezas. Ya sea que estés presumiendo de tu puntuación más alta en un juego o enumerando tus habilidades en una entrevista por Zoom, can es tu mejor amigo.
Es simple, rápido y permanece igual sin importar quién esté hablando. No tienes que preocuparte por terminaciones complejas o cambios extraños. Es la navaja suiza de los verbos.
Cubre todo, desde hazañas físicas hasta talentos mentales. En esta guía, nos aseguraremos de que lo uses como un profesional. No más adivinanzas.
No más errores incómodos. Solo inglés claro y seguro. Además, es mucho más fácil que intentar explicar por qué todavía no has aprendido a cocinar pasta sin quemarla.

How This Grammar Works

Piensa en can como un verbo modal. Esta es solo una forma elegante de decir que es un ayudante. Ayuda al verbo de acción principal a mostrar lo que es posible.
¿La parte más genial? Es perezoso. Nunca cambia su forma.
No añades -s para «él» o ella. No añades -ed para el pasado. Simplemente se queda como can.
Es como ese amigo que usa la misma sudadera en todas las fiestas. Siempre encaja. Además, nunca usas to después de él.
Es can swim, no can to swim. El verbo principal permanece en su forma más simple. Esto hace tu vida mucho más fácil.
Puedes concentrarte en lo que quieres decir, no en las matemáticas de la gramática. Es perfecto para mensajes rápidos y conversaciones veloces. Solo recuerda: can + verbo base = éxito.
Es lo más parecido a un
código de trucos
en la gramática inglesa. ¡Ojalá aprender a tocar la guitarra fuera así de fácil!

Formation Pattern

1
Crear oraciones con can es como construir con bloques de Lego. Solo tienes que encajarlos. Aquí está la receta secreta para el éxito:
2
Comienza con el Sujeto. Esta es la persona o cosa que realiza la acción. (I, You, We, They, He, She, It).
3
Añade Can. Esto nunca cambia. Es igual para todos.
4
Añade el Verbo Base. Este es el verbo sin terminaciones adicionales. Sin -ing, sin -s, sin -ed.
5
(Opcional) Añade el resto de tu oración.
6
Para oraciones negativas, simplemente añade not. Usualmente los juntamos en can't. Suena mucho más natural cuando hablas con amigos. Para preguntas, simplemente intercambias el sujeto y can. Es como un pequeño paso de baile.
7
Conjugation Table
8
Form | Example | Translation
9
Positive | I can code | Tengo la habilidad de programar
10
Negative | She can't sing | Ella no tiene la habilidad de cantar
11
Question | Can they play? | ¿Tienen ellos la habilidad de jugar?
12
Short Yes | Yes, I can | Confirmación de habilidad
13
Short No | No, she can't | Negación de habilidad

When To Use It

Usamos can para tres sabores principales de habilidad en el presente.
  • Habilidades Generales: Estas son cosas que aprendiste. Piensa en programar, hablar español o conducir un coche.
    I can drive an Uber.
  • Habilidades Físicas: Cosas que tu cuerpo puede hacer ahora mismo.
    He can run a marathon.
    O
    I can touch my toes
    (en un buen día).
  • Habilidades Mentales: Cosas que hace tu cerebro.
    She can solve complex math problems.
Lo usarás constantemente en las redes sociales. Piensa en un pie de foto de Instagram:
¡Por fin can cocinar una comida de cinco platos!
o un comentario de TikTok:
¿Cómo can bailar así?
. También es vital para buscar trabajo.
En una entrevista por Zoom, podrías decir:
I can manage large teams efficiently.
Es el lenguaje de la confianza. Solo no lo uses para prometer cosas que no puedes hacer realmente, como
I can finish this project in five minutes.
Ambos sabemos que eso es mentira.

Common Mistakes

Incluso los expertos se tropiezan a veces. Aquí están los momentos más comunes de tierra trágame que debes evitar:
  • La Trampa del To: Nunca digas
    I can to swim
    . Suena como si te estuvieras esforzando demasiado. Solo di
    I can swim
    .
  • La S de la Tercera Persona: No digas He cans cook. Suena como si estuviera poniendo comida en latas de metal. Di
    He can cook
    .
  • La Confusión con el Pasado: Can es solo para el presente. Si hablas de tu infancia, usa could.
  • El Doble Modal: No digas
    I will can go
    . Usa
    I will be able to go
    en su lugar. Can no le gusta compartir el protagonismo con otros verbos auxiliares.
  • Dobles Negativos: Evita "I can't do nothing. Usa I can't do anything". Te hace sonar mucho más agudo.

Contrast With Similar Patterns

A veces can tiene un primo llamado be able to. Hacen casi el mismo trabajo, pero tienen vibras diferentes.
  • Can: Este es el primo guay. Es informal, rápido y se usa el 90% del tiempo. Úsalo con amigos, familia y en la mayoría de los correos electrónicos.
  • Be able to: Este es el primo de traje y corbata. Es más formal. Lo usas en documentos oficiales o cuando can no funciona gramaticalmente (como después de will).

Ejemplo:

I can help you
(Natural) vs.
I am able to help you
(Muy formal/rígido).

También está know how to. Usamos esto específicamente para habilidades aprendidas.
I know how to fix a computer
implica que lo estudiaste.
I can fix a computer
solo significa que tienes la capacidad. La mayoría de las veces, can es el ganador porque es más corto. Y seamos honestos, a todos nos encantan las oraciones más cortas cuando estamos enviando mensajes de texto sobre la marcha.

Quick FAQ

Q

¿Es cannot lo mismo que can't?

Sí, pero cannot es muy formal. Usa can't para el 99% de tu vida. Te ahorra tiempo y aliento.

Q

¿Puedo usar can para pedir permiso?

¡Sí! Puedes decir

¿Can I borrow your charger?
. Es común y amigable.

Q

¿Por qué no decimos I am canning?

Porque can es un verbo modal. No tiene forma en -ing. Si necesitas eso, usa being able to.

Q

¿Funciona can para la habilidad futura?

Usualmente usamos

will be able to
. Sin embargo, para eventos programados, a veces usamos can.
I can meet you tomorrow at 5
.

Q

¿Cómo enfatizo que REALMENTE puedo hacer algo?

Puedes decir

I can indeed
o
I definitely can
. Solo no lo grites, eso es raro.

Present Tense of 'Can'

Subject Affirmative Negative Question
I
can
can't / cannot
Can I...?
You
can
can't / cannot
Can you...?
He/She/It
can
can't / cannot
Can he/she/it...?
We
can
can't / cannot
Can we...?
They
can
can't / cannot
Can they...?

Contractions

Full Form Contraction Usage
cannot
can't
Standard spoken/informal written
can not
n/a
Rarely used except for emphasis
can
n/a
No affirmative contraction exists

Meanings

Expresses that a person or thing has the power, skill, or opportunity to perform a specific action in the present.

1

Physical/Mental Ability

Having the inherent power or learned skill to do something.

“He can lift 100 kilograms.”

“She can solve complex math problems in her head.”

2

General Possibility

Expressing that something is possible or allowed by circumstances.

“You can buy stamps at the post office.”

“We can see the mountains from our window.”

3

Informal Permission

Asking for or giving permission in casual settings.

“Can I use your phone?”

“You can go home now if you're finished.”

4

Requests

Asking someone to do something for you.

“Can you help me with this bag?”

“Can you pass the salt, please?”

Reference Table

Reference table for Can: Expresar habilidad (Can)
Sujeto Can (Afirmativo) Can (Negativo) Can (Pregunta) Respuesta Corta
I
I can speak.
I can't / cannot speak.
Can I speak?
Yes, I can. / No, I can't.
You
You can sing.
You can't / cannot sing.
Can you sing?
Yes, you can. / No, you can't.
He/She/It
He can dance.
He can't / cannot dance.
Can he dance?
Yes, he can. / No, he can't.
We
We can play.
We can't / cannot play.
Can we play?
Yes, we can. / No, we can't.
They
They can run.
They can't / cannot run.
Can they run?
Yes, they can. / No, they can't.

Espectro de formalidad

Formal
I was wondering if you might be able to assist me?

I was wondering if you might be able to assist me? (Requesting assistance)

Neutral
Can you help me with this, please?

Can you help me with this, please? (Requesting assistance)

Informal
Can you give me a hand?

Can you give me a hand? (Requesting assistance)

Jerga
Yo, can you help a brother out?

Yo, can you help a brother out? (Requesting assistance)

Usos de 'Can'

CAN

Habilidad

  • Destreza She can play guitar.
  • Capacidad My phone can store 1TB.

Permiso

  • Preguntar Can I leave?
  • Dar You can go now.

Posibilidad

  • General It can be cold in winter.
  • Característica Stress can cause headaches.

Peticiones

  • Casual Can you help me?
  • Directa Can you close the door?

'Can' vs. Errores Comunes

Uso Correcto de 'Can'
I can swim. Correcto: 'Can' + verbo base.
She can speak. Correcto: Sin '-s' para él/ella/ello.
They can't hear. Correcto: 'Can't' para negativo.
Errores Comunes
I can to swim. Incorrecto: No uses 'to'.
She cans speak. Incorrecto: No '-s' en 'can'.
They don't can hear. Incorrecto: No uses 'do not'.

Flujo de Decisión para Usar 'Can'

1

¿Quieres hablar sobre la habilidad, destreza o capacidad de alguien?

YES
Usa: Sujeto + CAN + Verbo Base (ej. 'I can play piano')
NO
Ve a la siguiente pregunta.
2

¿Estás pidiendo o dando permiso?

YES
Usa: CAN + Sujeto + Verbo Base? (ej. 'Can I go?'); o Sujeto + CAN + Verbo Base (ej. 'You can go.')
NO
Ve a la siguiente pregunta.
3

¿Estás describiendo una posibilidad o característica general?

YES
Usa: Sujeto + CAN + Verbo Base (ej. 'It can get cold.')
NO
Ve a la siguiente pregunta.
4

¿Estás haciendo una petición casual y directa?

YES
Usa: CAN + Sujeto + Verbo Base? (ej. 'Can you help me?')
NO
Considera 'could' o 'would' para otros usos.

'Can' en Contextos Modernos

💬

Chats Online

  • Can you send that meme?
  • I can join the group call.
  • Who can help with this doc?
📱

Pedidos/Apps

  • Can I add a note?
  • You can track your order.
  • Can you deliver by 7?
📚

Estudio/Trabajo

  • I can present next.
  • Can we meet on Zoom?
  • This tool can automate tasks.
📸

Redes Sociales

  • She can really dance! #talent
  • Can you believe this view?
  • I can't even! 😂

Ejemplos por nivel

1

I can swim.

2

Can you help me?

3

She can't cook.

4

They can speak English.

1

You can buy bread at the bakery.

2

Can I open the window?

3

He can play the guitar very well.

4

We can't come to the party tonight.

1

I can't find my keys anywhere.

2

Can you tell me how to get to the station?

3

You can see the whole city from the top of the tower.

4

If you finish early, you can go home.

1

It can be quite difficult to find a job these days.

2

I can't have left my phone at the restaurant.

3

Can you believe how much he has changed?

4

The software can handle multiple tasks simultaneously.

1

One can only imagine the impact of such a decision.

2

The results can be interpreted in several ways.

3

I can't help but feel that we've made a mistake.

4

Can it be that she was lying all along?

1

The sheer scale of the disaster can hardly be overstated.

2

As far as I can gather, the deal is still on.

3

He can be quite the charmer when he wants to be.

4

Such behavior can but lead to trouble.

Fácil de confundir

Can: Expressing Ability (Can) vs Can vs. Could

Learners often use 'could' for present ability because they think it's just a more polite version of 'can'.

Can: Expressing Ability (Can) vs Can vs. May

Traditional grammar says 'may' is for permission and 'can' is for ability.

Can: Expressing Ability (Can) vs Can vs. Will

Learners try to combine them to talk about future ability.

Errores comunes

I can to swim.

I can swim.

Never use 'to' after modal verbs like 'can'.

He cans play.

He can play.

Modal verbs do not take an '-s' for he/she/it.

I no can go.

I can't go.

Use 'can't' or 'cannot' for negatives, not 'no'.

Can you to help?

Can you help?

Questions also follow the 'no-to' rule.

I don't can dance.

I can't dance.

Do not use 'do/does' with modal verbs.

I will can come.

I will be able to come.

'Can' has no future form with 'will'. Use 'be able to'.

She can sings.

She can sing.

The main verb after 'can' must be in the base form (no -s).

I can't to find it.

I can't find it.

Even in complex sentences, the 'no-to' rule applies.

I haven't canned.

I haven't been able to.

'Can' has no past participle. Use 'been able to'.

Can you may help?

Can you help? / May you help?

Do not use two modal verbs together.

It can't have been true.

It can't have been true.

This is actually correct, but learners often use 'mustn't' by mistake for negative deduction.

Patrones de oraciones

I can ___ very well.

Can you ___ for me, please?

You can't ___ in this area.

It can be ___ to ___.

Real World Usage

Job Interviews very common

I can use Microsoft Excel at an advanced level.

Texting Friends constant

Can u come over later?

Ordering Food common

Can I have the burger without onions?

Travel/Tourism very common

Where can I buy a bus ticket?

Social Media common

I can't even! 😍

Doctor's Office occasional

I can't move my arm very well.

💡

Practica 'can' en mini-escenarios

Imagina situaciones. Pregúntate:
¿Qué puedo hacer hoy?
o
¿Qué no puede hacer mi teléfono?
. Usa momentos reales, como pedir comida, para que se te quede grabado. Try asking yourself, \What can I do today?\ or \What can't my phone do?\
Use real-life situations like ordering food to make it stick!
⚠️

Evita 'to' después de 'can'

¡Este es un error súper común! Recuerda siempre que es can + verbo base (por ejemplo, can run, no can to run). "This is a super common trap! Always remember it's can + base verb (e.g., can run, not can to run)."
🎯

'Can't' vs. 'cannot'

Usa "can't
para casi todas las conversaciones informales y mensajes. Guarda
cannot
para escritos más formales o cuando quieres enfatizar mucho la negación.
Use can't for almost all informal conversations and texts. Reserve cannot for more formal writing or when you want to strongly emphasize the negative."
🌍

Peticiones educadas: 'could' vs 'can'

Aunque can está bien, could se considera más educado para peticiones, especialmente con desconocidos o en entornos profesionales. ¡Muestra un respeto extra!
While can is fine, could is generally seen as more polite for requests, especially with strangers or in professional settings. It shows extra respect!
💡

'Can' para posibilidades generales

Recuerda que can también describe cosas que son generalmente ciertas o típicas, como
It can get hot here in August.
¡No es solo sobre habilidades! "Remember can also describes things that are generally true or typical, like It can get hot here in August. It's not just about skills!"

Smart Tips

Swap 'can' for 'be able to' to sound more professional.

I can meet you at 5. I will be able to meet with you at 5:00 PM.

Use 'Could I have...' instead of 'I want...' or 'Can I have...'.

Can I have a coffee? Could I have a coffee, please?

Remember: Modals are 'to-allergic'. If you see 'can', delete the 'to' immediately.

I can to play guitar. I can play guitar.

Listen for the 't' in 'can't'. If you don't hear a 't' but the word is long, it's probably negative.

I can go. (short 'can') I can't go. (long 'can')

Pronunciación

I /kən/ swim.

The Weak 'Can'

In affirmative sentences, 'can' is usually unstressed and sounds like /kən/ (rhymes with 'run').

Yes, I /kæn/.

The Strong 'Can'

In short answers or for emphasis, 'can' is stressed and sounds like /kæn/ (rhymes with 'pan').

I /kænt/ go.

The Stressed 'Can't'

The negative 'can't' is always stressed and has a long /æ/ or /ɑː/ sound depending on the dialect.

Rising Intonation

Can you help? ↗

Standard yes/no question

Falling Intonation

I can't do it. ↘

Definitive statement of inability

Memorízalo

Mnemotecnia

CAN: C-apability, A-bility, N-ow. It's what you are capable of doing right now!

Asociación visual

Imagine a 'Can' of soda with a superhero cape. The 'Can' has the power to do anything! When you see a can, think of your own superpowers (skills).

Rhyme

No 'to', no '-s', 'can' is the best for the ability test!

Story

Meet Sam. Sam is a 'Can-do' person. He can speak five languages, he can climb mountains, and he can even bake a cake. But today, he can't go outside because it's raining. He can stay home and read instead.

Word Web

AbilitySkillPossibilityPermissionRequestCannotCan't

Desafío

Write down 5 things you can do and 5 things you can't do. Then, ask a friend if they can do those same things.

Notas culturales

While 'may' is technically more correct for permission, using 'can' is standard. If a teacher says 'I don't know, CAN you?' when you ask 'Can I go to the bathroom?', they are making a joke about your physical ability vs. permission.

In professional emails, 'be able to' is often used to sound more polite and capable than the simple 'can'.

Australians often use 'can' in very casual, shortened requests, sometimes dropping the subject in very informal speech.

Derived from the Old English 'cunnan', which meant 'to know' or 'to know how to'.

Inicios de conversación

What is one thing you can do that most people can't?

Can you speak any other languages besides English?

If you could have any superpower, what would it be and what could you do with it?

Can you tell me about a time you couldn't do something, but then you learned how?

Temas para diario

Write about your top three skills. What can you do well?
Describe a typical day in your city. What can tourists see and do?
Write a letter to your future self. What do you hope you can do in five years?
Discuss the limitations of technology. What can't computers do yet?

Errores comunes

Incorrect

Correcto


Incorrect

Correcto


Incorrect

Correcto


Incorrect

Correcto

Test Yourself

Elige la forma correcta

My brother ___ play the guitar really well.

✓ Correct! ✗ Not quite. Correct answer: can
Can es un verbo modal y no cambia de forma para sujetos de tercera persona del singular como 'my brother'.
Encuentra y corrige el error Error Correction

Find and fix the mistake:

She can to speak three languages.

✓ Correct! ✗ Not quite. Correct answer: She can speak three languages.
Los verbos modales como can siempre van seguidos de la forma base del verbo, sin 'to'.
¿Qué oración es correcta? Opción múltiple

Choose the correct sentence:

✓ Correct! ✗ Not quite. Correct answer: They can't help us.
La forma negativa de can es can't o cannot; no usa do not.
Pon las palabras en orden Sentence Reorder

Arrange the words in the correct order:

All words placed

Click words above to build the sentence

✓ Correct! ✗ Not quite. Correct answer: Can you text me later
Para preguntas con can, la estructura es Can + Sujeto + Verbo Base.

Score: /4

Ejercicios de practica

8 exercises
Choose the correct sentence. Opción múltiple

Which of these is correct?

✓ Correct! ✗ Not quite. Correct answer: She can sing.
Modal verbs like 'can' are followed by the base verb without 'to' and don't take an '-s'.
Fill in the blank with the correct form.

I ___ (not / can) come to the meeting tomorrow.

✓ Correct! ✗ Not quite. Correct answer: can't
The negative of 'can' is 'can't' or 'cannot'.
Correct the error in the sentence. Error Correction

Find and fix the mistake:

Can you to help me with my homework?

✓ Correct! ✗ Not quite. Correct answer: Can you help
Remove 'to' after 'can'.
Rewrite the sentence using 'can'. Sentence Transformation

I know how to play the violin.

✓ Correct! ✗ Not quite. Correct answer: I can play the violin.
'Can' is used to express learned skills.
Complete the dialogue. Dialogue Completion

A: Can you drive a car? B: No, ___.

✓ Correct! ✗ Not quite. Correct answer: I can't
Use the short negative form 'I can't' for short answers.
Is this 'Ability' or 'Permission'? Grammar Sorting

'Can I use your pen?'

✓ Correct! ✗ Not quite. Correct answer: Permission
Asking to use something is asking for permission.
Put the words in the correct order. Sentence Building

French / she / speak / can't / very / well

✓ Correct! ✗ Not quite. Correct answer: She can't speak French very well.
The order is Subject + can't + Verb + Object + Adverb.
Match the question to the answer. Match Pairs

1. Can you swim? 2. Can I go? 3. Can it rain?

✓ Correct! ✗ Not quite. Correct answer: 1-Yes I can, 2-Yes you can, 3-Yes it can
Short answers must match the subject of the question.

Score: /8

Practice Bank

12 exercises
Elige la forma correcta Completar huecos

A: ___ I borrow your charger? B: Of course!

✓ Correct! ✗ Not quite. Correct answer: Can
Elige la forma correcta Completar huecos

My cat ___ climb trees easily, but it ___ get down by itself.

✓ Correct! ✗ Not quite. Correct answer: can / can't
Elige la forma correcta Completar huecos

If you work hard, you ___ achieve anything you set your mind to.

✓ Correct! ✗ Not quite. Correct answer: can
Encuentra y corrige el error Error Correction

My old phone cannot to run that new game.

✓ Correct! ✗ Not quite. Correct answer: My old phone cannot run that new game.
Encuentra y corrige el error Error Correction

When I was younger, I can lift heavy weights.

✓ Correct! ✗ Not quite. Correct answer: When I was younger, I could lift heavy weights.
¿Qué oración es correcta? Opción múltiple

Choose the correct sentence:

✓ Correct! ✗ Not quite. Correct answer: The train can be delayed due to snow.
Escribe la oración correcta en inglés Traducción

Translate into English: 'Você pode me ajudar com esta caixa?'

✓ Correct! ✗ Not quite. Correct answer: ["Can you help me with this box?","Could you help me with this box?"]
Escribe la oración correcta en inglés Traducción

Translate into English: 'Eu não consigo encontrar meus óculos.'

✓ Correct! ✗ Not quite. Correct answer: ["I can't find my glasses.","I cannot find my glasses."]
Pon las palabras en orden Sentence Reorder

Arrange these words into a sentence:

✓ Correct! ✗ Not quite. Correct answer: I can't believe that story
Pon las palabras en orden Sentence Reorder

Arrange these words into a question:

✓ Correct! ✗ Not quite. Correct answer: Can we play a game after dinner
Empareja cada sujeto con su afirmación de habilidad Match Pairs

Match the subjects with the correct ability statement:

✓ Correct! ✗ Not quite. Correct answer: matched
Empareja la situación con la mejor oración con 'can' Match Pairs

Match the situation with the best 'can' sentence:

✓ Correct! ✗ Not quite. Correct answer: matched

Score: /12

Preguntas frecuentes (8)

'Can' is for the present (I can swim now), while 'could' is for the past (I could swim when I was six). 'Could' is also more polite for requests.

'Can't' is much more common in speaking and informal writing. 'Cannot' is used in formal documents or for strong emphasis.

In English, you cannot put two modal verbs together. To talk about the future, use 'I will be able to'.

No, 'can' is a modal verb, and modals never change their form. It is always 'can'.

Yes, it is very common. 'Can I go?' is perfectly fine, though 'May I go?' is more formal.

'Know how to' is only for learned skills. 'Can' is for skills AND physical ability or opportunity.

In a sentence, 'can' is often short (/kən/). 'Can't' is always long and stressed (/kænt/).

Yes, we use it for general possibilities, like 'It can get very hot in July'.

Scaffolded Practice

1

1

2

2

3

3

4

4

Mastery Progress

Needs Practice

Improving

Strong

Mastered

In Other Languages

Spanish high

Poder

Spanish conjugates 'poder' (puedo, puedes), while English 'can' never changes.

French high

Pouvoir

French requires different forms for 'I can' (je peux) and 'we can' (nous pouvons).

German very_high

Können

German conjugates the modal (ich kann, wir können).

Japanese moderate

~(ら)れる / ことができる

English uses a separate word ('can') before the verb, while Japanese modifies the verb itself.

Arabic moderate

يستطيع (yastati'u)

Arabic requires the second verb to be conjugated to match the subject.

Chinese moderate

会 (huì) / 能 (néng)

English uses 'can' for both learned skills and physical ability.

Learning Path

Prerequisites

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