
Verbe régulier : loo - looed - looed
Forme simple | Forme en V-ing | 
| I must loo you must loo she must loo we must loo you must loo they must loo  | I must be looing you must be looing she must be looing we must be looing you must be looing they must be looing  | 
Perfect | Perfect en V-ing | 
| I must have looed you must have looed she must have looed we must have looed you must have looed they must have looed  | I must have been looing you must have been looing she must have been looing we must have been looing you must have been looing they must have been looing  | 
Forme simple | Forme en V-ing | 
| I mustn't loo you mustn't loo she mustn't loo we mustn't loo you mustn't loo they mustn't loo  | I mustn't be looing you mustn't be looing she mustn't be looing we mustn't be looing you mustn't be looing they mustn't be looing  | 
Perfect | Perfect en V-ing | 
| I mustn't have looed you mustn't have looed she mustn't have looed we mustn't have looed you mustn't have looed they mustn't have looed  | I mustn't have been looing you mustn't have been looing she mustn't have been looing we mustn't have been looing you mustn't have been looing they mustn't have been looing  | 
Forme simple | Forme en V-ing | 
| must I loo? must you loo? must she loo? must we loo? must you loo? must they loo?  | must I be looing? must you be looing? must she be looing? must we be looing? must you be looing? must they be looing?  | 
Perfect | Perfect en V-ing | 
| must I have looed? must you have looed? must she have looed? must we have looed? must you have looed? must they have looed?  | must I have been looing? must you have been looing? must she have been looing? must we have been looing? must you have been looing? must they have been looing?  | 
Forme simple | Forme en V-ing | 
| mustn't I loo? mustn't you loo? mustn't she loo? mustn't we loo? mustn't you loo? mustn't they loo?  | mustn't I be looing? mustn't you be looing? mustn't she be looing? mustn't we be looing? mustn't you be looing? mustn't they be looing?  | 
Perfect | Perfect en V-ing | 
| mustn't I have looed? mustn't you have looed? mustn't she have looed? mustn't we have looed? mustn't you have looed? mustn't they have looed?  | mustn't I have been looing? mustn't you have been looing? mustn't she have been looing? mustn't we have been looing? mustn't you have been looing? mustn't they have been looing?  |