I'd be undertaking you'd be undertaking he'd be undertaking we'd be undertaking you'd be undertaking they'd be undertaking
Perfect
I should've undertaken you should've undertaken he should've undertaken we should've undertaken you should've undertaken they should've undertaken
Perfect en V-ing
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
Négation
Forme simple
I shouldn't undertake you shouldn't undertake he shouldn't undertake we shouldn't undertake you shouldn't undertake they shouldn't undertake
Forme en V-ing
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
Perfect
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
Perfect en V-ing
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
Forme interrogative
Forme simple
should I undertake? should you undertake? should he undertake? should we undertake? should you undertake? should they undertake?
Forme en V-ing
should I be undertaking? should you be undertaking? should he be undertaking? should we be undertaking? should you be undertaking? should they be undertaking?
Perfect
should I have undertaken? should you have undertaken? should he have undertaken? should we have undertaken? should you have undertaken? should they have undertaken?
Perfect en V-ing
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?
Forme interro-négative
Forme simple
shouldn't I undertake? shouldn't you undertake? shouldn't he undertake? shouldn't we undertake? shouldn't you undertake? shouldn't they undertake?
Forme en V-ing
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?
Perfect
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?
Perfect en V-ing
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?