
Verbe régulier : grab -  grabbed - grabbed
Traduction française : saisir 
Forme simple | Forme en V-ing | 
| I must grab you must grab he must grab we must grab you must grab they must grab  | I must be grabbing you must be grabbing he must be grabbing we must be grabbing you must be grabbing they must be grabbing  | 
Perfect | Perfect en V-ing | 
| I must have grabbed you must have grabbed he must have grabbed we must have grabbed you must have grabbed they must have grabbed  | I must have been grabbing you must have been grabbing he must have been grabbing we must have been grabbing you must have been grabbing they must have been grabbing  | 
Forme simple | Forme en V-ing | 
| I mustn't grab you mustn't grab he mustn't grab we mustn't grab you mustn't grab they mustn't grab  | I mustn't be grabbing you mustn't be grabbing he mustn't be grabbing we mustn't be grabbing you mustn't be grabbing they mustn't be grabbing  | 
Perfect | Perfect en V-ing | 
| I mustn't have grabbed you mustn't have grabbed he mustn't have grabbed we mustn't have grabbed you mustn't have grabbed they mustn't have grabbed  | I mustn't have been grabbing you mustn't have been grabbing he mustn't have been grabbing we mustn't have been grabbing you mustn't have been grabbing they mustn't have been grabbing  | 
Forme simple | Forme en V-ing | 
| must I grab? must you grab? must he grab? must we grab? must you grab? must they grab?  | must I be grabbing? must you be grabbing? must he be grabbing? must we be grabbing? must you be grabbing? must they be grabbing?  | 
Perfect | Perfect en V-ing | 
| must I have grabbed? must you have grabbed? must he have grabbed? must we have grabbed? must you have grabbed? must they have grabbed?  | must I have been grabbing? must you have been grabbing? must he have been grabbing? must we have been grabbing? must you have been grabbing? must they have been grabbing?  | 
Forme simple | Forme en V-ing | 
| mustn't I grab? mustn't you grab? mustn't he grab? mustn't we grab? mustn't you grab? mustn't they grab?  | mustn't I be grabbing? mustn't you be grabbing? mustn't he be grabbing? mustn't we be grabbing? mustn't you be grabbing? mustn't they be grabbing?  | 
Perfect | Perfect en V-ing | 
| mustn't I have grabbed? mustn't you have grabbed? mustn't he have grabbed? mustn't we have grabbed? mustn't you have grabbed? mustn't they have grabbed?  | mustn't I have been grabbing? mustn't you have been grabbing? mustn't he have been grabbing? mustn't we have been grabbing? mustn't you have been grabbing? mustn't they have been grabbing?  |