
Verbo regular: guarantee - guaranteed - guaranteed
Forma simple | Forma com V-ing | 
| I could guarantee you could guarantee he could guarantee we could guarantee you could guarantee they could guarantee  | I could be guaranteeing you could be guaranteeing he could be guaranteeing we could be guaranteeing you could be guaranteeing they could be guaranteeing  | 
Perfeito | Perfeito com V-ing | 
| I could have guaranteed you could have guaranteed he could have guaranteed we could have guaranteed you could have guaranteed they could have guaranteed  | I could have been guaranteeing you could have been guaranteeing he could have been guaranteeing we could have been guaranteeing you could have been guaranteeing they could have been guaranteeing  | 
Forma simple | Forma com V-ing | 
| I couldn't guarantee you couldn't guarantee he couldn't guarantee we couldn't guarantee you couldn't guarantee they couldn't guarantee  | I couldn't be guaranteeing you couldn't be guaranteeing he couldn't be guaranteeing we couldn't be guaranteeing you couldn't be guaranteeing they couldn't be guaranteeing  | 
Perfeito | Perfeito com V-ing | 
| I couldn't have guaranteed you couldn't have guaranteed he couldn't have guaranteed we couldn't have guaranteed you couldn't have guaranteed they couldn't have guaranteed  | I couldn't have been guaranteeing you couldn't have been guaranteeing he couldn't have been guaranteeing we couldn't have been guaranteeing you couldn't have been guaranteeing they couldn't have been guaranteeing  | 
Forma simple | Forma com V-ing | 
| could I guarantee? could you guarantee? could he guarantee? could we guarantee? could you guarantee? could they guarantee?  | could I be guaranteeing? could you be guaranteeing? could he be guaranteeing? could we be guaranteeing? could you be guaranteeing? could they be guaranteeing?  | 
Perfeito | Perfeito com V-ing | 
| could I have guaranteed? could you have guaranteed? could he have guaranteed? could we have guaranteed? could you have guaranteed? could they have guaranteed?  | could I have been guaranteeing? could you have been guaranteeing? could he have been guaranteeing? could we have been guaranteeing? could you have been guaranteeing? could they have been guaranteeing?  | 
Forma simple | Forma com V-ing | 
| couldn't I guarantee? couldn't you guarantee? couldn't he guarantee? couldn't we guarantee? couldn't you guarantee? couldn't they guarantee?  | couldn't I be guaranteeing? couldn't you be guaranteeing? couldn't he be guaranteeing? couldn't we be guaranteeing? couldn't you be guaranteeing? couldn't they be guaranteeing?  | 
Perfeito | Perfeito com V-ing | 
| couldn't I have guaranteed? couldn't you have guaranteed? couldn't he have guaranteed? couldn't we have guaranteed? couldn't you have guaranteed? couldn't they have guaranteed?  | couldn't I have been guaranteeing? couldn't you have been guaranteeing? couldn't he have been guaranteeing? couldn't we have been guaranteeing? couldn't you have been guaranteeing? couldn't they have been guaranteeing?  |