Cool MateMust vs Ought vs Should
Quand utiliser chacun en anglais, avec le sens, le registre et des exemples.
Must
Ought
Should
| Must | Ought | Should | |
|---|---|---|---|
| Prononciation | 🇬🇧 /["/məst//mʌst/","/ˈmʌsnt/"]/🇺🇸 /["/məst//mʌst/","/ˈmʌsnt/"]/ | 🇬🇧 //ɔːt//🇺🇸 //ɔt// | 🇬🇧 /["/ʃəd//ʃʊd/","/ˈʃʊdnt/"]/🇺🇸 /["/ʃəd//ʃʊd/","/ˈʃʊdnt/"]/ |
| Sens | Something that is necessary or very important. | should or must do something | used to tell someone what is the right thing to do |
| Exemple | You must finish your homework before playing outside. | You ought to apologize for your mistake. | You should study for the exam to do well. |
| Registre | Neutre | Formel | Neutre |
| Fréquence | Bloc à haute fréquence | Top 3000 (courant) | Top 1000 (très courant) |
| Niveau CEFR | A1 | B1 | A1 |
| Collocations | 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 |
| Antonymes | can, may, might | ought not, should not | must not, shall not |
| Erreurs fréquentes | 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.' |
| Notes d'usage | 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. |
Questions fréquentes : Must vs Ought vs Should
Quelle est la différence entre Must, Ought et 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
Lequel est le plus formel : Must, Ought et Should ?
Ought est le plus formel de tous.
Lequel est le plus avancé : Must, Ought et Should ?
Ought est le niveau le plus élevé, à B1, sur l'échelle CEFR.
Must, Ought et Should sont-ils au même niveau CEFR ?
Must: A1, Ought: B1, Should: A1 sur l'échelle CEFR.
Peux-tu montrer un exemple de chacun ?
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.
Puis-je utiliser Must, Ought et Should de façon interchangeable ?
Pas toujours. Must, Ought et Should sont proches et se recoupent parfois, mais elles diffèrent par le registre, la fréquence et l'usage, donc remplacer l'une par l'autre peut changer le sens ou le ton. Regarde les différences ci-dessus avant de substituer.