
Verbe régulier : stain -  stained - stained
Traduction française : tacher 
Forme simple | Forme en V-ing | 
| I must stain you must stain he must stain we must stain you must stain they must stain  | I must be staining you must be staining he must be staining we must be staining you must be staining they must be staining  | 
Perfect | Perfect en V-ing | 
| I must have stained you must have stained he must have stained we must have stained you must have stained they must have stained  | I must have been staining you must have been staining he must have been staining we must have been staining you must have been staining they must have been staining  | 
Forme simple | Forme en V-ing | 
| I mustn't stain you mustn't stain he mustn't stain we mustn't stain you mustn't stain they mustn't stain  | I mustn't be staining you mustn't be staining he mustn't be staining we mustn't be staining you mustn't be staining they mustn't be staining  | 
Perfect | Perfect en V-ing | 
| I mustn't have stained you mustn't have stained he mustn't have stained we mustn't have stained you mustn't have stained they mustn't have stained  | I mustn't have been staining you mustn't have been staining he mustn't have been staining we mustn't have been staining you mustn't have been staining they mustn't have been staining  | 
Forme simple | Forme en V-ing | 
| must I stain? must you stain? must he stain? must we stain? must you stain? must they stain?  | must I be staining? must you be staining? must he be staining? must we be staining? must you be staining? must they be staining?  | 
Perfect | Perfect en V-ing | 
| must I have stained? must you have stained? must he have stained? must we have stained? must you have stained? must they have stained?  | must I have been staining? must you have been staining? must he have been staining? must we have been staining? must you have been staining? must they have been staining?  | 
Forme simple | Forme en V-ing | 
| mustn't I stain? mustn't you stain? mustn't he stain? mustn't we stain? mustn't you stain? mustn't they stain?  | mustn't I be staining? mustn't you be staining? mustn't he be staining? mustn't we be staining? mustn't you be staining? mustn't they be staining?  | 
Perfect | Perfect en V-ing | 
| mustn't I have stained? mustn't you have stained? mustn't he have stained? mustn't we have stained? mustn't you have stained? mustn't they have stained?  | mustn't I have been staining? mustn't you have been staining? mustn't he have been staining? mustn't we have been staining? mustn't you have been staining? mustn't they have been staining?  |