
Verbe régulier : practice -  practiced - practiced
Traduction française : (US) s'exercer à - pratiquer - (US) s'entraîner 
Forme simple | Forme en V-ing | 
| I must practice you must practice he must practice we must practice you must practice they must practice  | I must be practicing you must be practicing he must be practicing we must be practicing you must be practicing they must be practicing  | 
Perfect | Perfect en V-ing | 
| I must have practiced you must have practiced he must have practiced we must have practiced you must have practiced they must have practiced  | I must have been practicing you must have been practicing he must have been practicing we must have been practicing you must have been practicing they must have been practicing  | 
Forme simple | Forme en V-ing | 
| I mustn't practice you mustn't practice he mustn't practice we mustn't practice you mustn't practice they mustn't practice  | I mustn't be practicing you mustn't be practicing he mustn't be practicing we mustn't be practicing you mustn't be practicing they mustn't be practicing  | 
Perfect | Perfect en V-ing | 
| I mustn't have practiced you mustn't have practiced he mustn't have practiced we mustn't have practiced you mustn't have practiced they mustn't have practiced  | I mustn't have been practicing you mustn't have been practicing he mustn't have been practicing we mustn't have been practicing you mustn't have been practicing they mustn't have been practicing  | 
Forme simple | Forme en V-ing | 
| must I practice? must you practice? must he practice? must we practice? must you practice? must they practice?  | must I be practicing? must you be practicing? must he be practicing? must we be practicing? must you be practicing? must they be practicing?  | 
Perfect | Perfect en V-ing | 
| must I have practiced? must you have practiced? must he have practiced? must we have practiced? must you have practiced? must they have practiced?  | must I have been practicing? must you have been practicing? must he have been practicing? must we have been practicing? must you have been practicing? must they have been practicing?  | 
Forme simple | Forme en V-ing | 
| mustn't I practice? mustn't you practice? mustn't he practice? mustn't we practice? mustn't you practice? mustn't they practice?  | mustn't I be practicing? mustn't you be practicing? mustn't he be practicing? mustn't we be practicing? mustn't you be practicing? mustn't they be practicing?  | 
Perfect | Perfect en V-ing | 
| mustn't I have practiced? mustn't you have practiced? mustn't he have practiced? mustn't we have practiced? mustn't you have practiced? mustn't they have practiced?  | mustn't I have been practicing? mustn't you have been practicing? mustn't he have been practicing? mustn't we have been practicing? mustn't you have been practicing? mustn't they have been practicing?  |