
Verbe régulier : regret -  regreted - regreted
Traduction française : regretter 
Forme simple | Forme en V-ing | 
| I must regret you must regret she must regret we must regret you must regret they must regret  | I must be regreting you must be regreting she must be regreting we must be regreting you must be regreting they must be regreting  | 
Perfect | Perfect en V-ing | 
| I must have regreted you must have regreted she must have regreted we must have regreted you must have regreted they must have regreted  | I must have been regreting you must have been regreting she must have been regreting we must have been regreting you must have been regreting they must have been regreting  | 
Forme simple | Forme en V-ing | 
| I mustn't regret you mustn't regret she mustn't regret we mustn't regret you mustn't regret they mustn't regret  | I mustn't be regreting you mustn't be regreting she mustn't be regreting we mustn't be regreting you mustn't be regreting they mustn't be regreting  | 
Perfect | Perfect en V-ing | 
| I mustn't have regreted you mustn't have regreted she mustn't have regreted we mustn't have regreted you mustn't have regreted they mustn't have regreted  | I mustn't have been regreting you mustn't have been regreting she mustn't have been regreting we mustn't have been regreting you mustn't have been regreting they mustn't have been regreting  | 
Forme simple | Forme en V-ing | 
| must I regret? must you regret? must she regret? must we regret? must you regret? must they regret?  | must I be regreting? must you be regreting? must she be regreting? must we be regreting? must you be regreting? must they be regreting?  | 
Perfect | Perfect en V-ing | 
| must I have regreted? must you have regreted? must she have regreted? must we have regreted? must you have regreted? must they have regreted?  | must I have been regreting? must you have been regreting? must she have been regreting? must we have been regreting? must you have been regreting? must they have been regreting?  | 
Forme simple | Forme en V-ing | 
| mustn't I regret? mustn't you regret? mustn't she regret? mustn't we regret? mustn't you regret? mustn't they regret?  | mustn't I be regreting? mustn't you be regreting? mustn't she be regreting? mustn't we be regreting? mustn't you be regreting? mustn't they be regreting?  | 
Perfect | Perfect en V-ing | 
| mustn't I have regreted? mustn't you have regreted? mustn't she have regreted? mustn't we have regreted? mustn't you have regreted? mustn't they have regreted?  | mustn't I have been regreting? mustn't you have been regreting? mustn't she have been regreting? mustn't we have been regreting? mustn't you have been regreting? mustn't they have been regreting?  |