
Verbe régulier : celebrate -  celebrated - celebrated
Traduction française : fêter - faire la fête 
Forme simple | Forme en V-ing | 
| I must celebrate you must celebrate she must celebrate we must celebrate you must celebrate they must celebrate  | I must be celebrating you must be celebrating she must be celebrating we must be celebrating you must be celebrating they must be celebrating  | 
Perfect | Perfect en V-ing | 
| I must have celebrated you must have celebrated she must have celebrated we must have celebrated you must have celebrated they must have celebrated  | I must have been celebrating you must have been celebrating she must have been celebrating we must have been celebrating you must have been celebrating they must have been celebrating  | 
Forme simple | Forme en V-ing | 
| I mustn't celebrate you mustn't celebrate she mustn't celebrate we mustn't celebrate you mustn't celebrate they mustn't celebrate  | I mustn't be celebrating you mustn't be celebrating she mustn't be celebrating we mustn't be celebrating you mustn't be celebrating they mustn't be celebrating  | 
Perfect | Perfect en V-ing | 
| I mustn't have celebrated you mustn't have celebrated she mustn't have celebrated we mustn't have celebrated you mustn't have celebrated they mustn't have celebrated  | I mustn't have been celebrating you mustn't have been celebrating she mustn't have been celebrating we mustn't have been celebrating you mustn't have been celebrating they mustn't have been celebrating  | 
Forme simple | Forme en V-ing | 
| must I celebrate? must you celebrate? must she celebrate? must we celebrate? must you celebrate? must they celebrate?  | must I be celebrating? must you be celebrating? must she be celebrating? must we be celebrating? must you be celebrating? must they be celebrating?  | 
Perfect | Perfect en V-ing | 
| must I have celebrated? must you have celebrated? must she have celebrated? must we have celebrated? must you have celebrated? must they have celebrated?  | must I have been celebrating? must you have been celebrating? must she have been celebrating? must we have been celebrating? must you have been celebrating? must they have been celebrating?  | 
Forme simple | Forme en V-ing | 
| mustn't I celebrate? mustn't you celebrate? mustn't she celebrate? mustn't we celebrate? mustn't you celebrate? mustn't they celebrate?  | mustn't I be celebrating? mustn't you be celebrating? mustn't she be celebrating? mustn't we be celebrating? mustn't you be celebrating? mustn't they be celebrating?  | 
Perfect | Perfect en V-ing | 
| mustn't I have celebrated? mustn't you have celebrated? mustn't she have celebrated? mustn't we have celebrated? mustn't you have celebrated? mustn't they have celebrated?  | mustn't I have been celebrating? mustn't you have been celebrating? mustn't she have been celebrating? mustn't we have been celebrating? mustn't you have been celebrating? mustn't they have been celebrating?  |