
Verbe régulier : guarantee -  guaranteed - guaranteed
Traduction française : garantir - certifier 
Forme simple | Forme en V-ing | 
| I must guarantee you must guarantee she must guarantee we must guarantee you must guarantee they must guarantee  | I must be guaranteeing you must be guaranteeing she must be guaranteeing we must be guaranteeing you must be guaranteeing they must be guaranteeing  | 
Perfect | Perfect en V-ing | 
| I must have guaranteed you must have guaranteed she must have guaranteed we must have guaranteed you must have guaranteed they must have guaranteed  | I must have been guaranteeing you must have been guaranteeing she must have been guaranteeing we must have been guaranteeing you must have been guaranteeing they must have been guaranteeing  | 
Forme simple | Forme en V-ing | 
| I mustn't guarantee you mustn't guarantee she mustn't guarantee we mustn't guarantee you mustn't guarantee they mustn't guarantee  | I mustn't be guaranteeing you mustn't be guaranteeing she mustn't be guaranteeing we mustn't be guaranteeing you mustn't be guaranteeing they mustn't be guaranteeing  | 
Perfect | Perfect en V-ing | 
| I mustn't have guaranteed you mustn't have guaranteed she mustn't have guaranteed we mustn't have guaranteed you mustn't have guaranteed they mustn't have guaranteed  | I mustn't have been guaranteeing you mustn't have been guaranteeing she mustn't have been guaranteeing we mustn't have been guaranteeing you mustn't have been guaranteeing they mustn't have been guaranteeing  | 
Forme simple | Forme en V-ing | 
| must I guarantee? must you guarantee? must she guarantee? must we guarantee? must you guarantee? must they guarantee?  | must I be guaranteeing? must you be guaranteeing? must she be guaranteeing? must we be guaranteeing? must you be guaranteeing? must they be guaranteeing?  | 
Perfect | Perfect en V-ing | 
| must I have guaranteed? must you have guaranteed? must she have guaranteed? must we have guaranteed? must you have guaranteed? must they have guaranteed?  | must I have been guaranteeing? must you have been guaranteeing? must she have been guaranteeing? must we have been guaranteeing? must you have been guaranteeing? must they have been guaranteeing?  | 
Forme simple | Forme en V-ing | 
| mustn't I guarantee? mustn't you guarantee? mustn't she guarantee? mustn't we guarantee? mustn't you guarantee? mustn't they guarantee?  | mustn't I be guaranteeing? mustn't you be guaranteeing? mustn't she be guaranteeing? mustn't we be guaranteeing? mustn't you be guaranteeing? mustn't they be guaranteeing?  | 
Perfect | Perfect en V-ing | 
| mustn't I have guaranteed? mustn't you have guaranteed? mustn't she have guaranteed? mustn't we have guaranteed? mustn't you have guaranteed? mustn't they have guaranteed?  | mustn't I have been guaranteeing? mustn't you have been guaranteeing? mustn't she have been guaranteeing? mustn't we have been guaranteeing? mustn't you have been guaranteeing? mustn't they have been guaranteeing?  |