
Verbo irregular: undertake - undertook - undertaken
Forma simple | Forma com V-ing | 
| I'd undertake you'd undertake he'd undertake we'd undertake you'd undertake they'd undertake  | I'd be undertaking you'd be undertaking he'd be undertaking we'd be undertaking you'd be undertaking they'd be undertaking  | 
Perfeito | Perfeito com V-ing | 
| I should've undertaken you should've undertaken he should've undertaken we should've undertaken you should've undertaken they should've undertaken  | I should've been undertaking you should've been undertaking he should've been undertaking we should've been undertaking you should've been undertaking they should've been undertaking  | 
Forma simple | Forma com V-ing | 
| I shouldn't undertake you shouldn't undertake he shouldn't undertake we shouldn't undertake you shouldn't undertake they shouldn't undertake  | I shouldn't be undertaking you shouldn't be undertaking he shouldn't be undertaking we shouldn't be undertaking you shouldn't be undertaking they shouldn't be undertaking  | 
Perfeito | Perfeito com V-ing | 
| I shouldn't have undertaken you shouldn't have undertaken he shouldn't have undertaken we shouldn't have undertaken you shouldn't have undertaken they shouldn't have undertaken  | I shouldn't have been undertaking you shouldn't have been undertaking he shouldn't have been undertaking we shouldn't have been undertaking you shouldn't have been undertaking they shouldn't have been undertaking  | 
Forma simple | Forma com V-ing | 
| should I undertake? should you undertake? should he undertake? should we undertake? should you undertake? should they undertake?  | should I be undertaking? should you be undertaking? should he be undertaking? should we be undertaking? should you be undertaking? should they be undertaking?  | 
Perfeito | Perfeito com V-ing | 
| should I have undertaken? should you have undertaken? should he have undertaken? should we have undertaken? should you have undertaken? should they have undertaken?  | should I have been undertaking? should you have been undertaking? should he have been undertaking? should we have been undertaking? should you have been undertaking? should they have been undertaking?  | 
Forma simple | Forma com V-ing | 
| shouldn't I undertake? shouldn't you undertake? shouldn't he undertake? shouldn't we undertake? shouldn't you undertake? shouldn't they undertake?  | shouldn't I be undertaking? shouldn't you be undertaking? shouldn't he be undertaking? shouldn't we be undertaking? shouldn't you be undertaking? shouldn't they be undertaking?  | 
Perfeito | Perfeito com V-ing | 
| shouldn't I have undertaken? shouldn't you have undertaken? shouldn't he have undertaken? shouldn't we have undertaken? shouldn't you have undertaken? shouldn't they have undertaken?  | shouldn't I have been undertaking? shouldn't you have been undertaking? shouldn't he have been undertaking? shouldn't we have been undertaking? shouldn't you have been undertaking? shouldn't they have been undertaking?  |