
Verbe régulier : growl -  growled - growled
Traduction française : grogner - grommeler 
Forme simple | Forme en V-ing | 
| I must growl you must growl she must growl we must growl you must growl they must growl  | I must be growling you must be growling she must be growling we must be growling you must be growling they must be growling  | 
Perfect | Perfect en V-ing | 
| I must have growled you must have growled she must have growled we must have growled you must have growled they must have growled  | I must have been growling you must have been growling she must have been growling we must have been growling you must have been growling they must have been growling  | 
Forme simple | Forme en V-ing | 
| I mustn't growl you mustn't growl she mustn't growl we mustn't growl you mustn't growl they mustn't growl  | I mustn't be growling you mustn't be growling she mustn't be growling we mustn't be growling you mustn't be growling they mustn't be growling  | 
Perfect | Perfect en V-ing | 
| I mustn't have growled you mustn't have growled she mustn't have growled we mustn't have growled you mustn't have growled they mustn't have growled  | I mustn't have been growling you mustn't have been growling she mustn't have been growling we mustn't have been growling you mustn't have been growling they mustn't have been growling  | 
Forme simple | Forme en V-ing | 
| must I growl? must you growl? must she growl? must we growl? must you growl? must they growl?  | must I be growling? must you be growling? must she be growling? must we be growling? must you be growling? must they be growling?  | 
Perfect | Perfect en V-ing | 
| must I have growled? must you have growled? must she have growled? must we have growled? must you have growled? must they have growled?  | must I have been growling? must you have been growling? must she have been growling? must we have been growling? must you have been growling? must they have been growling?  | 
Forme simple | Forme en V-ing | 
| mustn't I growl? mustn't you growl? mustn't she growl? mustn't we growl? mustn't you growl? mustn't they growl?  | mustn't I be growling? mustn't you be growling? mustn't she be growling? mustn't we be growling? mustn't you be growling? mustn't they be growling?  | 
Perfect | Perfect en V-ing | 
| mustn't I have growled? mustn't you have growled? mustn't she have growled? mustn't we have growled? mustn't you have growled? mustn't they have growled?  | mustn't I have been growling? mustn't you have been growling? mustn't she have been growling? mustn't we have been growling? mustn't you have been growling? mustn't they have been growling?  |