
Verbe régulier : fail -  failed - failed
Traduction française : échouer - échouer à 
Forme simple | Forme en V-ing | 
| I'd fail you'd fail she'd fail we'd fail you'd fail they'd fail  | I'd be failing you'd be failing she'd be failing we'd be failing you'd be failing they'd be failing  | 
Perfect | Perfect en V-ing | 
| I should've failed you should've failed she should've failed we should've failed you should've failed they should've failed  | I should've been failing you should've been failing she should've been failing we should've been failing you should've been failing they should've been failing  | 
Forme simple | Forme en V-ing | 
| I shouldn't fail you shouldn't fail she shouldn't fail we shouldn't fail you shouldn't fail they shouldn't fail  | I shouldn't be failing you shouldn't be failing she shouldn't be failing we shouldn't be failing you shouldn't be failing they shouldn't be failing  | 
Perfect | Perfect en V-ing | 
| I shouldn't have failed you shouldn't have failed she shouldn't have failed we shouldn't have failed you shouldn't have failed they shouldn't have failed  | I shouldn't have been failing you shouldn't have been failing she shouldn't have been failing we shouldn't have been failing you shouldn't have been failing they shouldn't have been failing  | 
Forme simple | Forme en V-ing | 
| should I fail? should you fail? should she fail? should we fail? should you fail? should they fail?  | should I be failing? should you be failing? should she be failing? should we be failing? should you be failing? should they be failing?  | 
Perfect | Perfect en V-ing | 
| should I have failed? should you have failed? should she have failed? should we have failed? should you have failed? should they have failed?  | should I have been failing? should you have been failing? should she have been failing? should we have been failing? should you have been failing? should they have been failing?  | 
Forme simple | Forme en V-ing | 
| shouldn't I fail? shouldn't you fail? shouldn't she fail? shouldn't we fail? shouldn't you fail? shouldn't they fail?  | shouldn't I be failing? shouldn't you be failing? shouldn't she be failing? shouldn't we be failing? shouldn't you be failing? shouldn't they be failing?  | 
Perfect | Perfect en V-ing | 
| shouldn't I have failed? shouldn't you have failed? shouldn't she have failed? shouldn't we have failed? shouldn't you have failed? shouldn't they have failed?  | shouldn't I have been failing? shouldn't you have been failing? shouldn't she have been failing? shouldn't we have been failing? shouldn't you have been failing? shouldn't they have been failing?  |