Cool MateCannot vs Impossible vs Unable
Quando usar cada um em inglês, com significado, registro e exemplos.
Cannot
Top 1000 (muito comum)A1
Impossible
Top 1000 (muito comum)A2
Unable
Top 2000 (comum)B1adjective
| Cannot | Impossible | Unable | |
|---|---|---|---|
| Pronúncia | 🇬🇧 /["/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 |
| Exemplo | 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 | Neutro | Neutro | Neutro |
| Quão comum | Top 1000 (muito comum) | Top 1000 (muito comum) | Top 2000 (comum) |
| Nível CEFR | A1 | A2 | B1 |
| Classe gramatical | adjective | ||
| Colocações | 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 |
| Antônimos | can, able | possible, feasible, achievable | able, capable |
| Erros comuns | 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. |
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Perguntas frequentes: Cannot vs Impossible vs Unable
Qual é a diferença entre Cannot, Impossible e Unable?
Cannot: to be unable to do something Impossible: Not able to happen or be done. Unable: not able to do something
Qual é mais avançada: Cannot, Impossible e Unable?
Unable é o nível mais alto, em B1, na escala CEFR.
Cannot, Impossible e Unable estão no mesmo nível CEFR?
Cannot: A1, Impossible: A2, Unable: B1 na escala CEFR.
Pode mostrar um exemplo de cada?
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.
Posso usar Cannot, Impossible e Unable de forma intercambiável?
Nem sempre. Cannot, Impossible e Unable são relacionadas e às vezes se sobrepõem, mas diferem em registro, frequência e uso, então trocar uma pela outra pode mudar o sentido ou o tom. Veja as diferenças acima antes de substituir.