
Verbe régulier : serve -  served - served
Traduction française : servir 
| Forme simple | Forme en V-ing | 
| I must serve you must serve he must serve we must serve you must serve they must serve | I must be serving you must be serving he must be serving we must be serving you must be serving they must be serving | 
| Perfect | Perfect en V-ing | 
| I must have served you must have served he must have served we must have served you must have served they must have served | I must have been serving you must have been serving he must have been serving we must have been serving you must have been serving they must have been serving | 
| Forme simple | Forme en V-ing | 
| I mustn't serve you mustn't serve he mustn't serve we mustn't serve you mustn't serve they mustn't serve | I mustn't be serving you mustn't be serving he mustn't be serving we mustn't be serving you mustn't be serving they mustn't be serving | 
| Perfect | Perfect en V-ing | 
| I mustn't have served you mustn't have served he mustn't have served we mustn't have served you mustn't have served they mustn't have served | I mustn't have been serving you mustn't have been serving he mustn't have been serving we mustn't have been serving you mustn't have been serving they mustn't have been serving | 
| Forme simple | Forme en V-ing | 
| must I serve? must you serve? must he serve? must we serve? must you serve? must they serve? | must I be serving? must you be serving? must he be serving? must we be serving? must you be serving? must they be serving? | 
| Perfect | Perfect en V-ing | 
| must I have served? must you have served? must he have served? must we have served? must you have served? must they have served? | must I have been serving? must you have been serving? must he have been serving? must we have been serving? must you have been serving? must they have been serving? | 
| Forme simple | Forme en V-ing | 
| mustn't I serve? mustn't you serve? mustn't he serve? mustn't we serve? mustn't you serve? mustn't they serve? | mustn't I be serving? mustn't you be serving? mustn't he be serving? mustn't we be serving? mustn't you be serving? mustn't they be serving? | 
| Perfect | Perfect en V-ing | 
| mustn't I have served? mustn't you have served? mustn't he have served? mustn't we have served? mustn't you have served? mustn't they have served? | mustn't I have been serving? mustn't you have been serving? mustn't he have been serving? mustn't we have been serving? mustn't you have been serving? mustn't they have been serving? |