B1 Verb Moods 14 min read Fácil

Could: Hablando de tus habilidades pasadas

“Could” expresa habilidades generales pasadas; was able to es para éxitos específicos del pasado.

Grammar Rule in 30 Seconds

Use 'could' to describe general talents or skills you had in the past, like speaking a language or swimming.

  • Use 'could' for general past abilities: 'I could run fast.'
  • Use 'couldn't' for all past failures: 'I couldn't find my keys.'
  • Never add -s, -ed, or -ing to 'could' or the main verb.
👤 + could + 🏃 (Base Verb)

Overview

¿Alguna vez has mirado una foto de tu yo más joven y pensado:
Guau, realmente tenía ritmo en ese entonces
? Tal vez eras una estrella de atletismo en la secundaria. Quizás pasaste horas dominando el kickflip perfecto en tu patineta.
O tal vez simplemente eras muy bueno recordando los números de teléfono de todos antes de que los teléfonos inteligentes volvieran flojos nuestros cerebros. Cuando hablamos de estas versiones pasadas de nosotros mismos y las habilidades que solíamos tener, recurrimos a una palabra específica: could. Es la máquina del tiempo de la gramática inglesa.
Te permite transportar tus habilidades a una época en la que tus rodillas no crujían y tus borradores de TikTok no existían. Esta regla trata sobre la habilidad general. Se trata de las cosas que sabías hacer durante un largo período.
Estamos hablando de pasatiempos de la infancia, viejos trabajos o esa fase en la que realmente entendías matemáticas. Es simple, es directo y es esencial para contar la historia de tu vida. Solo no lo uses para presumir demasiado en las cenas.
A nadie le gusta alguien que pudo haber sido y que no deja de hablar de su servidor de Minecraft del 2012.

How This Grammar Works

Piensa en could como el hermano mayor y relajado de can. Mientras que can está ocupado lidiando con el aquí y el ahora, could se está relajando en el pasado. ¿La mejor parte?
Es un verbo modal. En el mundo de la gramática inglesa, modal generalmente significa
fácil de usar
. ¿Por qué?
Porque los verbos modales son notablemente perezosos. No cambian su forma por nadie. Ya sea que hables de ti mismo, de tu mejor amigo o de un grupo de stans de K-pop, could permanece exactamente igual.
No necesitas agregar una s para la tercera persona. No necesitas agregar ed para hacerlo tiempo pasado (¡ya es pasado!). Se coloca justo antes de la palabra de acción principal.
Actúa como un ayudante, dándole a esa acción un sabor de habilidad pasada. Una cosa para recordar: el verbo que sigue a could debe estar en su forma más simple. Sin to, sin -ing y definitivamente sin terminaciones elegantes.
Es como un atuendo minimalista: limpio, funcional e imposible de arruinar. A menos que intentes usar calcetines con sandalias. Ese es un tipo diferente de error.

Formation Pattern

1
Crear una oración con could es más fácil que pedir pizza en una app. Solo necesitas tres ingredientes principales. Sigue estos pasos para construir tu oración:
2
Comienza con tu sujeto (la persona o cosa con la habilidad).
3
Agrega la palabra mágica could (o couldn't para cosas de las que carecías).
4
Deja caer el verbo base (la acción misma).
5
Así es como se ve la conjugación en la práctica:
6
Form | Example | Translation
7
--- | --- | ---
8
Positive | I could swim. | Yo podía nadar.
9
Negative | You couldn't dance. | Tú no podías bailar.
10
Question | Could she sing? | ¿Podía ella cantar?
11
Negative Question | Couldn't they see? | ¿No podían ellos ver?
12
¿Notas cómo could nunca cambia? I could, She could, The dog could. Es el mejor jugador de equipo. Para los negativos, usamos could not, pero casi todos lo acortan a couldn't. Suena más natural y te ahorra preciosos milisegundos para scrollear en Instagram. Si quieres hacer una pregunta, simplemente intercambia el sujeto y could. Es un cambio simple que te hace sonar como un profesional. Solo no olvides el signo de interrogación, o la gente podría pensar que solo estás haciendo una declaración muy confundida.

When To Use It

Usamos could para tres escenarios principales en el pasado. Primero, para habilidades generales. Esto significa cosas que eras capaz de hacer cuando quisieras.
I could speak French when I lived in Paris.
No solo lo hablaste una vez; tuviste la habilidad durante meses o años. Segundo, lo usamos para verbos de los sentidos. Estas son palabras como see, hear, smell, taste y feel.
Si estuvieras en un concierto y la música estuviera vibrando en tu pecho, dirías:
I could feel the bass
. Tercero, lo usamos para procesos mentales. Si estuvieras mirando un problema matemático complejo y de repente hiciera clic, lo entendiste (could understand).
Veamos algunas vibras modernas. Imagina que estás hablando de tu viejo teléfono del 2010. Podrías decir:
My old Nokia could last for a week on one charge.
Esa es una habilidad general.
O piensa en un videojuego que solías jugar.
I could beat the final boss in ten minutes.
Era una habilidad que poseías. Se trata de esa vibra de tener el poder de hacer algo.
No significa que lo estuvieras haciendo en ese segundo exacto. Solo significa que el potencial estaba allí. Como tu potencial para ir al gimnasio, incluso si actualmente estás en el sofá con una bolsa de papitas.

Common Mistakes

El tropiezo más común es agregar to después de could. Escucharás a la gente decir:
I could to play guitar.
Esto es un gran no-no. Piensa en could y to como dos celebridades que tuvieron una ruptura complicada. No pueden estar en la misma habitación juntos. Siempre es could play, nunca could to play.
Otro error es usar could para un éxito de una sola vez. Si lograste encontrar tus AirPods perdidos ayer, no deberías decir:
I could find them.
Could es para habilidades generales, no para momentos específicos de ¡lo hice!. Para esas victorias de una sola vez, generalmente usamos was able to o managed to.
Finalmente, no olvides que couldn't es el arreglador universal. Mientras que could es exigente con lo general vs. lo específico, a couldn't no le importa. Puedes usar couldn't para una falta general de habilidad ("I couldn't swim as a kid
) Y para un fracaso específico (
I couldn't find the link for the Zoom call today
). Es la navaja suiza de la incapacidad pasada. Úsala sabiamente y no dejes que te haga sonar demasiado pesimista. A nadie le gusta un Danny
no-pudo-hacerlo".

Contrast With Similar Patterns

El enfrentamiento más grande en la gramática inglesa es Could vs. Was able to. Parecen gemelos, pero tienen personalidades diferentes.
  • Usa Could para habilidades generales a largo plazo. (p. ej.,
    I could run fast in school.
    )
  • Usa Was able to para logros específicos de una sola vez. (p. ej.,
    I was able to finish the report by 5 PM.
    )
Piénsalo así: Could es tu talento. Was able to es tu victoria específica. Si dices:
I could open the jar,
suena como si tuvieras un talento de toda la vida para abrir frascos. Si dices:
I was able to open the jar,
suena como si ese frasco específico fuera una lucha, pero ganaste.
Además, contrasta esto con Used to. Used to se enfoca en el hábito, mientras que could se enfoca en la habilidad.
I used to swim
significa que ibas a la piscina a menudo.
I could swim
significa que sabías cómo mantenerte a flote. Puedes usarlos juntos para máxima nostalgia:
I used to go to the beach because I could swim well.
Es como una dosis doble de en mis tiempos.

Quick FAQ

Q

¿could es solo para el pasado?

Principalmente, pero también lo usamos para solicitudes educadas en el presente (

Could you help me?
). En esta lección, nos estamos apegando a la versión de habilidad pasada. ¡El contexto es el rey!

Q

¿Puedo usar could para personas que están muertas?

Sí. Si estás hablando de una figura histórica, usarías could.

Einstein could solve complex equations in his head.

Q

¿Cuál es la diferencia entre couldn't y can't?

Can't es para ahora. Couldn't es para entonces. "I can't find my phone now, but I couldn't find my keys yesterday."

Q

¿Necesito un verbo auxiliar como did?

¡No! Could es fuerte e independiente. No dices I did could. Solo I could. Es como un artista solista que no necesita una banda de respaldo.

2. Negative Contractions

Full Form Contraction Usage
could not
couldn't
Common in speech and informal writing
could not
n/a
Used for formal emphasis

Conjugation of 'Could' for Past Ability

Subject Modal Base Verb Example
I
could
swim
I could swim.
You
could
swim
You could swim.
He/She/It
could
swim
She could swim.
We
could
swim
We could swim.
They
could
swim
They could swim.

Meanings

Used to describe a general ability or skill that someone possessed in the past but may not possess now.

1

General Past Ability

A skill you had over a long period, like a talent or a language.

“She could speak three languages by the age of ten.”

“My grandfather could play the violin beautifully.”

2

Past Inability (Negative)

Used to say that someone was not able to do something, whether it was a general skill or a specific event.

“I couldn't swim until I was twelve.”

“We couldn't find the restaurant last night.”

3

Past Permission (Reported)

Used to describe being allowed to do something in the past.

“When we were kids, we could stay up late on Fridays.”

“I could wear whatever I wanted at my old job.”

Reference Table

Reference table for Could: Hablando de tus habilidades pasadas
Tipo de Uso Estructura Ejemplo en Inglés Traducción
Habilidad General
Sujeto + could + Verbo Base
When I was young, I could climb trees.
Cuando era joven, podía trepar árboles.
Habilidad Negativa
Sujeto + couldn't + Verbo Base
She couldn't understand the lecture.
Ella no podía entender la conferencia.
Pregunta (Habilidad)
Could + Sujeto + Verbo Base?
Could you speak Spanish in high school?
¿Podías hablar español en la escuela secundaria?
Éxito Específico (🚫)
Sujeto + was/were able to + Verbo
I was able to find my keys eventually.
Finalmente pude encontrar mis llaves.
Percepción
Sujeto + could + Verbo de Percepción
We could hear the ocean from our room.
Podíamos oír el océano desde nuestra habitación.
Hábito Pasado (Alternativa)
Sujeto + used to be able to + Verbo
I used to be able to run faster.
Antes podía correr más rápido.

Espectro de formalidad

Formal
I possessed the ability to converse in French during my residency.

I possessed the ability to converse in French during my residency. (Professional vs Social)

Neutral
I could speak French when I lived there.

I could speak French when I lived there. (Professional vs Social)

Informal
I used to be able to do French pretty well.

I used to be able to do French pretty well. (Professional vs Social)

Jerga
I was lowkey fluent in French back in the day.

I was lowkey fluent in French back in the day. (Professional vs Social)

Could para Habilidad Pasada

Could (Habilidad Pasada)

Casos de Uso

  • Habilidades Generales I could play piano.
  • Percepción I could hear the rain.
  • Acciones Negativas I couldn't finish it.

Formación

  • Positivo Subject + could + Base Verb
  • Negativo Subject + couldn't + Base Verb
  • Pregunta Could + Subject + Base Verb?

Contraste Clave

  • vs. Was/Were Able To `Could` (general ability), `Was/Were Able To` (specific success)

Could vs. Was/Were Able To

Could (Habilidad Pasada)
Habilidad General She could speak French.
Percepción We could see the mountain.
Estado Persistente I couldn't swim.
Was/Were Able To (Logro Específico)
Éxito Único She was able to escape.
Dificultad Superada We were able to find a solution.
Logró Hacer I was able to finish the report.

Eligiendo Could o Was/Were Able To

1

¿Estás hablando de una *habilidad o capacidad general* en el pasado?

YES
Usa 'could' (ej., "I could play guitar.")
NO
Ve al siguiente paso.
2

¿Estás hablando de una *acción específica y exitosa* en el pasado, especialmente si fue difícil?

YES
Usa 'was/were able to' (ej., "I was able to fix the car.")
NO
Considera otros usos de 'could' (posibilidad, petición educada) o tiempos pasados.
3

¿Es una declaración *negativa* sobre una incapacidad pasada (general o específica)?

YES
Usa 'couldn't' (ej., "I couldn't sleep." / "I couldn't open the door.")
NO
Reevalúa tu significado intencionado.

Could: Lo que Describe

👶

Talentos de la Infancia

  • Could draw well
  • Could sing high notes
  • Could solve Rubik's Cube
💼

Profesiones/Hobbies Pasados

  • Could code in Python
  • Could run marathons
  • Could bake intricate cakes
👂

Capacidades Sensoriales

  • Could hear whispers
  • Could see in the dark
  • Could feel vibrations
💭

Potencial No Realizado

  • Could have learned Spanish
  • Could have traveled more
  • Could have started a business

Ejemplos por nivel

1

I could run very fast when I was a boy.

2

She could not swim last year.

3

Could you speak English in 2010?

4

They could play football well.

1

My sister could read when she was four years old.

2

We couldn't hear the teacher because of the noise.

3

Could your father drive a truck?

4

I could see the stars clearly from my balcony.

1

I could speak Italian fluently when I lived in Rome.

2

He couldn't finish the exam because it was too hard.

3

Even though I was tired, I was able to reach the summit.

4

Could you understand the local dialect when you visited Scotland?

1

As soon as I walked into the kitchen, I could smell the fresh bread.

2

In the 19th century, people could travel across the Atlantic by steamship.

3

She said she could lend me the money if I needed it.

4

I couldn't help but notice how nervous he was.

1

The athlete could have won the race, but he tripped at the last moment.

2

Only after hours of searching could we find the hidden entrance.

3

He could be quite difficult to work with in those days.

4

The complexity was such that few could comprehend the implications.

1

The sheer scale of the disaster was something no one could have predicted.

2

It was a time when one could still find solitude in the city's hidden parks.

3

Whether he could actually perform under such pressure remained to be seen.

4

The manuscript was so damaged that the scholars could barely decipher the script.

Fácil de confundir

Could: Talking About Your Past Skills vs Could vs. Managed To

Learners use 'could' for specific successes because their native language uses one word for both.

Could: Talking About Your Past Skills vs Could vs. Could Have

Learners mix up past ability with past possibility.

Could: Talking About Your Past Skills vs Could vs. Would

Both are used for the past, but 'would' is for habits, not abilities.

Errores comunes

I could to swim.

I could swim.

Never use 'to' after a modal verb like 'could'.

He coulds play.

He could play.

Modal verbs do not take an -s in the third person.

I can swim yesterday.

I could swim yesterday.

Use 'could' for the past, not 'can'.

I no could go.

I couldn't go.

Use 'couldn't' or 'could not' for negatives.

I coulded speak.

I could speak.

Do not add -ed to 'could'. It is already past tense.

Did you could see?

Could you see?

Do not use 'did' with 'could' in questions.

I couldn't to hear.

I couldn't hear.

Negative forms also do not take 'to'.

I could win the race yesterday.

I managed to win the race yesterday.

Use 'managed to' or 'was able to' for specific one-time successes.

We could find the house finally.

We were able to find the house finally.

Specific achievements require 'was able to'.

I could spoke English.

I could speak English.

The verb after 'could' must be the base form, not the past form.

I could have swam.

I could have swum.

After 'could have', use the past participle, not the past simple.

Patrones de oraciones

When I was ___, I could ___.

I couldn't ___ because ___.

I searched everywhere, but I couldn't ___.

Back in the day, people could ___ without ___.

Real World Usage

Job Interviews very common

In my last role, I could handle high-pressure situations effectively.

Nostalgic Social Media Posts common

Throwback to when I could actually do a flip!

Police Reports / Witness Statements occasional

I could see the suspect running toward the park.

Travel Stories very common

We couldn't find the hotel, so we asked a local for help.

Medical History common

Before the surgery, I couldn't walk for more than ten minutes.

Family Gatherings constant

Your grandfather could eat a whole turkey by himself!

💡

Lista de Habilidades Pasadas

Cuando hables de algo que *solías* saber hacer, o una habilidad general que tenías en el pasado, 'could' es tu mejor amigo. Si fue un éxito único, especialmente contra viento y marea, cambia a
was/were able to
.
I could swim when I was a child, but I was able to cross the finish line despite my injury.
⚠️

¡No Confundas Significados!

¡'Could' es un camaleón! Puede significar habilidad pasada, posibilidad o cortesía. Siempre revisa el contexto para asegurarte de que lo usas para expresar lo que *solías poder hacer*, no si algo *podría* pasar o si estás pidiendo algo amablemente.
Could you pass the salt?
(cortesía) vs.
I could run fast when I was young.
(habilidad pasada).
🎯

Couldn't es Flexible

Aunque el 'could' positivo es mayormente para habilidad general pasada, 'couldn't' (la forma negativa) se puede usar tanto para incapacidad general pasada ("I couldn't swim as a child
) como para incapacidad específica pasada (
I tried to open the jar, but I couldn't").
🌍

Sutileza en Inglés

La distinción entre 'could' y
was/were able to
para acciones pasadas es sutil pero importante para sonar como un nativo. Dominarla muestra una comprensión más profunda de los matices del inglés, lo que puede impresionar en entornos profesionales o académicos.
I could speak French, but I was able to negotiate the deal.

Smart Tips

Swap 'could' for 'managed to' to sound like a native speaker.

I could find my keys after ten minutes. I managed to find my keys after ten minutes.

Always use 'could' instead of 'was able to' for a more natural flow.

I was able to hear the birds. I could hear the birds.

Relax! 'Could' is the same for everyone (I, you, he, she, they).

She coulds swim. She could swim.

Use 'could not' instead of 'couldn't' to add weight and formality to your writing.

The government couldn't solve the crisis. The government could not solve the crisis.

Pronunciación

/kʊd/

Silent L

The 'l' in 'could' is completely silent. It sounds exactly like 'good' but with a 'k' sound.

/kəd/

Weak Form

In fast speech, 'could' is often reduced to a very short sound.

/ˈkʊdn̩ʔ/

Couldn't Glottal Stop

In many dialects, the 't' in 'couldn't' is replaced by a glottal stop.

Rising Intonation in Questions

Could you ↗swim?

Conveys a polite inquiry about a past skill.

Memorízalo

Mnemotecnia

C.O.U.L.D. = Capability Over Us Last Decade.

Asociación visual

Imagine a younger version of yourself wearing a superhero cape. On the cape, the word 'COULD' is written. Think of all the things that 'super-you' was able to do back then.

Rhyme

When I was young and life was good, I did all the things I could.

Story

In the Kingdom of Yesterday, everyone had a 'Could-Card.' If you had a talent for years, like singing, your card said 'I could sing.' But if you only did something once, like finding a lost ring, the card said 'I managed to find it.'

Word Web

AbilityPastSkillTalentCouldn'tManagedSenses

Desafío

Write down three things you could do when you were ten years old that you cannot do now.

Notas culturales

British speakers often use 'could' with 'at all' to emphasize inability: 'I couldn't see it at all.'

Americans frequently substitute 'could' with 'was able to' in casual stories to sound more dynamic.

In academic writing, 'could' is used to describe historical possibilities or theories that were once held.

From Old English 'cuðe', the past tense of 'cunnan' (to know or be able).

Inicios de conversación

What is something you could do as a child that you can't do now?

Could you speak any other languages when you were younger?

Think of a difficult situation you faced last year. Could you solve it alone?

If you could go back in time, what skill do you wish you could have learned earlier?

Temas para diario

Write about your favorite childhood hobby. What could you do then?
Describe a time you were lost. What could you see? What couldn't you find?
Compare your skills now to five years ago. Use 'could' and 'can'.
Write a short story about a historical figure and the challenges they could or couldn't overcome.

Errores comunes

Incorrect

Correcto


Incorrect

Correcto


Incorrect

Correcto


Incorrect

Correcto

Test Yourself

Elige la forma correcta

When I was five, I ___ read simple books.

✓ Correct! ✗ Not quite. Correct answer: could
'Could' se usa para expresar una habilidad general en el pasado.
Encuentra y corrige el error Error Correction

Find and fix the mistake:

Yesterday, I could finish all my homework, even though it was a lot.

✓ Correct! ✗ Not quite. Correct answer: Yesterday, I was able to finish all my homework, even though it was a lot.
Para una acción específica y exitosa en el pasado, 'was/were able to' es más apropiado que 'could'.
¿Qué oración es correcta? Opción múltiple

Choose the correct sentence:

✓ Correct! ✗ Not quite. Correct answer: My dad could play the guitar when he was young.
Después de 'could', usa la forma base del verbo sin 'to'.
Traduce al inglés Traducción

Translate into English: "Als Kind konnte sie stundenlang tanzen."

Answer starts with: ["A...

✓ Correct! ✗ Not quite. Correct answer: ["As a child, she could dance for hours."]
Als Kind se traduce como As a child, y 'konnte' (could) expresa su habilidad general pasada para 'tanzen' (dance) por 'stundenlang' (for hours).

Score: /4

Ejercicios de practica

8 exercises
Choose the correct word to complete the sentence. Opción múltiple

When I was a child, I ___ speak German fluently.

✓ Correct! ✗ Not quite. Correct answer: could
'Could' is used for general past abilities like speaking a language.
Find and fix the error in the sentence. Error Correction

Find and fix the mistake:

He could to play the guitar when he was young.

✓ Correct! ✗ Not quite. Correct answer: He could play
Modal verbs like 'could' are followed by the base verb without 'to'.
Fill in the blank with 'could' or 'managed to'.

The exam was very difficult, but I ___ pass it.

✓ Correct! ✗ Not quite. Correct answer: managed to
Passing a specific exam is a one-time success, so 'managed to' is better than 'could'.
Change the present sentence into the past. Sentence Transformation

I can't hear you.

✓ Correct! ✗ Not quite. Correct answer: I couldn't hear you.
The past of 'can't' is 'couldn't'.
Is the following rule true or false? True False Rule

We use 'could' for specific one-time successes in affirmative sentences.

✓ Correct! ✗ Not quite. Correct answer: False
We use 'was able to' or 'managed to' for specific successes; 'could' is for general ability.
Complete the dialogue. Dialogue Completion

A: Did you find your keys? B: Yes, I ___ find them under the sofa.

✓ Correct! ✗ Not quite. Correct answer: managed to
Finding keys is a specific event, so 'managed to' is the natural choice.
Which sentence is a 'General Ability'? Grammar Sorting

Sort these sentences.

✓ Correct! ✗ Not quite. Correct answer: I could swim when I was five.
Swimming as a skill is a general ability.
Match the present to the past. Match Pairs

Match 'I can' and 'I can't'.

✓ Correct! ✗ Not quite. Correct answer: I could / I couldn't
'Could' is the past of 'can'.

Score: /8

Practice Bank

12 exercises
Elige la forma correcta Completar huecos

Before the accident, he ___ lift heavy weights easily.

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

After days of searching, they finally could locate the lost treasure.

✓ Correct! ✗ Not quite. Correct answer: After days of searching, they finally were able to locate the lost treasure.
¿Qué oración es correcta? Opción múltiple

Which sentence correctly expresses general past ability?

✓ Correct! ✗ Not quite. Correct answer: Both are correct.
Traduce al inglés Traducción

Translate into English: "Trotz des schlechten Wetters konnten wir den Gipfel erreichen."

✓ Correct! ✗ Not quite. Correct answer: ["Despite the bad weather, we were able to reach the summit."]
Pon las palabras en orden Sentence Reorder

Arrange these words into a sentence:

✓ Correct! ✗ Not quite. Correct answer: When she was a child, she could read quickly.
Empareja los sujetos con la forma correcta para la habilidad pasada Match Pairs

Match the subjects with the correct form for past ability:

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

Before smartphones, people ___ remember many phone numbers by heart.

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

I tried to download the app, but I could not doing it.

✓ Correct! ✗ Not quite. Correct answer: I tried to download the app, but I could not do it.
¿Qué oración expresa correctamente una habilidad general pasada? Opción múltiple

Which sentence correctly expresses a general past ability?

✓ Correct! ✗ Not quite. Correct answer: He could play the violin beautifully.
Traduce al inglés Traducción

Translate into English: "Könnten Sie als Kind gut zeichnen?"

✓ Correct! ✗ Not quite. Correct answer: ["Could you draw well as a child?"]
Pon las palabras en orden Sentence Reorder

Arrange these words into a sentence:

✓ Correct! ✗ Not quite. Correct answer: When she lived in France, she could speak French fluently.
Empareja los escenarios de incapacidad con la mejor forma verbal Match Pairs

Match the scenarios with the best verb form for inability:

✓ Correct! ✗ Not quite. Correct answer: matched

Score: /12

Preguntas frecuentes (8)

Generally, no. In affirmative sentences, use `managed to` or `was able to` for specific events. However, you can use `couldn't` for specific failures.

`Could` is for general skills (like 'I could swim'). `Was able to` is for both general skills and specific moments (like 'I was able to escape').

No. Never use `to` after `could`. Say `I could go`, not `I could to go`.

Not necessarily. `Could` is very common in all registers. `Was able to` can sound slightly more formal or precise in specific contexts.

No. Modal verbs like `could` never change their form. It is always `could` for all subjects.

Verbs of the senses (see, hear, smell) are an exception. We often use `could` with them even for specific moments: `I could see him clearly.`

Move `could` to the front of the sentence: `Could you speak English ten years ago?`

Yes! While affirmative `could` is for general ability, negative `couldn't` works for both general and specific situations.

Scaffolded Practice

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Mastery Progress

Needs Practice

Improving

Strong

Mastered

In Other Languages

Spanish moderate

podía / pude

English uses 'couldn't' for both, while Spanish still chooses between 'no podía' and 'no pude'.

French moderate

pouvais / ai pu

French uses the auxiliary 'avoir' for specific past ability, while English uses 'was able to'.

German high

konnte

German is more flexible with 'konnte' for specific events than English is with 'could'.

Japanese partial

できた (dekita)

Japanese doesn't have a separate modal word like 'could'; the ability is built into the verb ending.

Arabic low

كان يستطيع (kana yastati')

Arabic requires two verbs to express what English does in one word ('could').

Chinese low

会 (huì) / 能 (néng) + past context

Chinese relies on time markers rather than a specific past-tense modal verb.

Learning Path

Prerequisites

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