Cool MateMust vs Ought vs Should
Cuándo usar cada una en inglés, con significado, registro y ejemplos.
Must
Ought
Should
| Must | Ought | Should | |
|---|---|---|---|
| Pronunciación | 🇬🇧 /["/məst//mʌst/","/ˈmʌsnt/"]/🇺🇸 /["/məst//mʌst/","/ˈmʌsnt/"]/ | 🇬🇧 //ɔːt//🇺🇸 //ɔt// | 🇬🇧 /["/ʃəd//ʃʊd/","/ˈʃʊdnt/"]/🇺🇸 /["/ʃəd//ʃʊd/","/ˈʃʊdnt/"]/ |
| Significado | Something that is necessary or very important. | should or must do something | used to tell someone what is the right thing to do |
| Ejemplo | You must finish your homework before playing outside. | You ought to apologize for your mistake. | You should study for the exam to do well. |
| Registro | Neutral | Formal | Neutral |
| Qué tan común | Bloque de alta frecuencia | Top 3000 (común) | Top 1000 (muy común) |
| Nivel CEFR | A1 | B1 | A1 |
| Colocaciones | must see, must do, must have, must remember | ought to know, ought to be, ought to do | should do, should have, should not, should consider, should remember |
| Antónimos | can, may, might | ought not, should not | must not, shall not |
| Errores comunes | Using 'must' in situations where 'have to' is more suitable., Confusing 'must' with 'might' or 'may', which imply possibility instead of necessity., Using 'must' with the gerund form instead of the base form of the verb. | Confused with 'should' – they are similar but 'ought' sounds more formal., Using 'ought' without 'to', e.g., 'You ought study.' which is incorrect., Incorrectly using 'ought' in negative forms like 'oughtn't' in some dialects. | 'Should' is often confused with 'must,' leading to weaker advice than intended., Forget to follow 'should' with the base form of the verb, e.g., saying 'should goes' instead of 'should go.', Using 'should' for past events instead of 'should have.' |
| Notas de uso | Use 'must' when giving strong advice or making strong recommendations. Avoid using it in casual conversations where 'should' might be more appropriate. | Use 'ought' in advising or suggesting. It sounds more formal than 'should' and is less common in everyday conversation. | Use 'should' for advice, suggestions, or expectations. It's appropriate in both spoken and written English, but avoid it in very formal contexts where 'ought to' might be preferred. |
Preguntas frecuentes: Must vs Ought vs Should
¿Cuál es la diferencia entre Must, Ought y Should?
Must: Something that is necessary or very important. Ought: should or must do something Should: used to tell someone what is the right thing to do
¿Cuál es más formal: Must, Ought y Should?
Ought es la más formal de estas.
¿Cuál es más avanzada: Must, Ought y Should?
Ought es la de nivel más alto, en B1, en la escala CEFR.
¿Must, Ought y Should tienen el mismo nivel CEFR?
Must: A1, Ought: B1, Should: A1 en la escala CEFR.
¿Puedes mostrar un ejemplo de cada una?
Must: You must finish your homework before playing outside. Ought: You ought to apologize for your mistake. Should: You should study for the exam to do well.
¿Puedo usar Must, Ought y Should indistintamente?
No siempre. Must, Ought y Should 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.