Cannot vs Impossible vs Unable
Cuándo usar cada una en inglés, con significado, registro y ejemplos.
Cannot
Impossible
Unable
| Cannot | Impossible | Unable | |
|---|---|---|---|
| Pronunciación | 🇬🇧 /["/ˈkænɒt/"]/🇺🇸 /["/ˈkænɑːt/"]/ | 🇬🇧 /["/ɪmˈpɒsəbl/"]/🇺🇸 /["/ɪmˈpɑːsəbl/"]/ | 🇬🇧 /["/ʌnˈeɪbl/"]/🇺🇸 /["/ʌnˈeɪbl/"]/ |
| Significado | to be unable to do something | Not able to happen or be done. | not able to do something |
| Ejemplo | I cannot believe the price of the tickets! | Climbing that mountain seems impossible without proper training. | I was unable to attend the meeting due to a family emergency. |
| Registro | Neutral | Neutral | Neutral |
| Qué tan común | Top 1000 (muy común) | Top 1000 (muy común) | Top 2000 (común) |
| Nivel CEFR | A1 | A2 | B1 |
| Categoría gramatical | adjective | ||
| Colocaciones | cannot believe, cannot wait, cannot afford | appear, be, look, absolutely, completely, downright, for, be, become, find somebody, really, absolutely, completely | appear, be, feel, completely, quite, totally, unwilling or unable |
| Antónimos | can, able | possible, feasible, achievable | able, capable |
| Errores comunes | Confused with 'can not' — it's always one word in negative form., Using 'cannot' in too formal a context — prefer 'can't' in casual speech., Incorrectly using 'cannot' in past tense situations. | 'Impossible' is sometimes confused with 'unbelievable' but they are not the same., Learners might use 'impossible' to describe very challenging tasks instead of things that cannot be done at all., 'Impossible' is often incorrectly combined with less strong modifiers, like 'very impossible'. | Confused with 'unable to' and 'not able to' — they mean the same but usage can vary., Using 'unable' without a following action verb., Misplacing adjectives — remember 'unable' always describes capability. |
| Notas de uso | Use 'cannot' in any situation where something is impossible. Avoid using it in informal contexts where 'can't' is more common. | Use 'impossible' to describe something that cannot be achieved. It’s suitable for both spoken and written English but may be too strong in polite contexts. | Use 'unable' in situations where someone or something lacks the ability to perform an action. It's appropriate in both spoken and written contexts, but avoid in very casual conversations. |
Míralo en clips reales
Preguntas frecuentes: Cannot vs Impossible vs Unable
¿Cuál es la diferencia entre Cannot, Impossible y Unable?
Cannot: to be unable to do something Impossible: Not able to happen or be done. Unable: not able to do something
¿Cuál es más avanzada: Cannot, Impossible y Unable?
Unable es la de nivel más alto, en B1, en la escala CEFR.
¿Cannot, Impossible y Unable tienen el mismo nivel CEFR?
Cannot: A1, Impossible: A2, Unable: B1 en la escala CEFR.
¿Puedes mostrar un ejemplo de cada una?
Cannot: I cannot believe the price of the tickets! Impossible: Climbing that mountain seems impossible without proper training. Unable: I was unable to attend the meeting due to a family emergency.
¿Puedo usar Cannot, Impossible y Unable indistintamente?
No siempre. Cannot, Impossible y Unable están relacionadas y a veces se solapan, pero difieren en registro, frecuencia y uso, así que cambiar una por otra puede alterar el significado o el tono. Revisa las diferencias de arriba antes de sustituir.