
Verbe régulier : busy -  busied - busied
Traduction française : s'occuper à 
Forme simple | Forme en V-ing | 
| I must busy you must busy he must busy we must busy you must busy they must busy  | I must be busying you must be busying he must be busying we must be busying you must be busying they must be busying  | 
Perfect | Perfect en V-ing | 
| I must have busied you must have busied he must have busied we must have busied you must have busied they must have busied  | I must have been busying you must have been busying he must have been busying we must have been busying you must have been busying they must have been busying  | 
Forme simple | Forme en V-ing | 
| I mustn't busy you mustn't busy he mustn't busy we mustn't busy you mustn't busy they mustn't busy  | I mustn't be busying you mustn't be busying he mustn't be busying we mustn't be busying you mustn't be busying they mustn't be busying  | 
Perfect | Perfect en V-ing | 
| I mustn't have busied you mustn't have busied he mustn't have busied we mustn't have busied you mustn't have busied they mustn't have busied  | I mustn't have been busying you mustn't have been busying he mustn't have been busying we mustn't have been busying you mustn't have been busying they mustn't have been busying  | 
Forme simple | Forme en V-ing | 
| must I busy? must you busy? must he busy? must we busy? must you busy? must they busy?  | must I be busying? must you be busying? must he be busying? must we be busying? must you be busying? must they be busying?  | 
Perfect | Perfect en V-ing | 
| must I have busied? must you have busied? must he have busied? must we have busied? must you have busied? must they have busied?  | must I have been busying? must you have been busying? must he have been busying? must we have been busying? must you have been busying? must they have been busying?  | 
Forme simple | Forme en V-ing | 
| mustn't I busy? mustn't you busy? mustn't he busy? mustn't we busy? mustn't you busy? mustn't they busy?  | mustn't I be busying? mustn't you be busying? mustn't he be busying? mustn't we be busying? mustn't you be busying? mustn't they be busying?  | 
Perfect | Perfect en V-ing | 
| mustn't I have busied? mustn't you have busied? mustn't he have busied? mustn't we have busied? mustn't you have busied? mustn't they have busied?  | mustn't I have been busying? mustn't you have been busying? mustn't he have been busying? mustn't we have been busying? mustn't you have been busying? mustn't they have been busying?  |