
Verbe régulier : exist -  existed - existed
Traduction française : exister 
| Forme simple | Forme en V-ing | 
| I'd exist you'd exist he'd exist we'd exist you'd exist they'd exist | I'd be existing you'd be existing he'd be existing we'd be existing you'd be existing they'd be existing | 
| Perfect | Perfect en V-ing | 
| I should've existed you should've existed he should've existed we should've existed you should've existed they should've existed | I should've been existing you should've been existing he should've been existing we should've been existing you should've been existing they should've been existing | 
| Forme simple | Forme en V-ing | 
| I shouldn't exist you shouldn't exist he shouldn't exist we shouldn't exist you shouldn't exist they shouldn't exist | I shouldn't be existing you shouldn't be existing he shouldn't be existing we shouldn't be existing you shouldn't be existing they shouldn't be existing | 
| Perfect | Perfect en V-ing | 
| I shouldn't have existed you shouldn't have existed he shouldn't have existed we shouldn't have existed you shouldn't have existed they shouldn't have existed | I shouldn't have been existing you shouldn't have been existing he shouldn't have been existing we shouldn't have been existing you shouldn't have been existing they shouldn't have been existing | 
| Forme simple | Forme en V-ing | 
| should I exist? should you exist? should he exist? should we exist? should you exist? should they exist? | should I be existing? should you be existing? should he be existing? should we be existing? should you be existing? should they be existing? | 
| Perfect | Perfect en V-ing | 
| should I have existed? should you have existed? should he have existed? should we have existed? should you have existed? should they have existed? | should I have been existing? should you have been existing? should he have been existing? should we have been existing? should you have been existing? should they have been existing? | 
| Forme simple | Forme en V-ing | 
| shouldn't I exist? shouldn't you exist? shouldn't he exist? shouldn't we exist? shouldn't you exist? shouldn't they exist? | shouldn't I be existing? shouldn't you be existing? shouldn't he be existing? shouldn't we be existing? shouldn't you be existing? shouldn't they be existing? | 
| Perfect | Perfect en V-ing | 
| shouldn't I have existed? shouldn't you have existed? shouldn't he have existed? shouldn't we have existed? shouldn't you have existed? shouldn't they have existed? | shouldn't I have been existing? shouldn't you have been existing? shouldn't he have been existing? shouldn't we have been existing? shouldn't you have been existing? shouldn't they have been existing? |