I'd be stiffering you'd be stiffering he'd be stiffering we'd be stiffering you'd be stiffering they'd be stiffering
Perfecto
I should've stiffered you should've stiffered he should've stiffered we should've stiffered you should've stiffered they should've stiffered
Perfecto con V-ing
I should've been stiffering you should've been stiffering he should've been stiffering we should've been stiffering you should've been stiffering they should've been stiffering
Negación
Forma simple
I shouldn't stiffer you shouldn't stiffer he shouldn't stiffer we shouldn't stiffer you shouldn't stiffer they shouldn't stiffer
Forma con V-ing
I shouldn't be stiffering you shouldn't be stiffering he shouldn't be stiffering we shouldn't be stiffering you shouldn't be stiffering they shouldn't be stiffering
Perfecto
I shouldn't have stiffered you shouldn't have stiffered he shouldn't have stiffered we shouldn't have stiffered you shouldn't have stiffered they shouldn't have stiffered
Perfecto con V-ing
I shouldn't have been stiffering you shouldn't have been stiffering he shouldn't have been stiffering we shouldn't have been stiffering you shouldn't have been stiffering they shouldn't have been stiffering
Forma interrogativa
Forma simple
should I stiffer? should you stiffer? should he stiffer? should we stiffer? should you stiffer? should they stiffer?
Forma con V-ing
should I be stiffering? should you be stiffering? should he be stiffering? should we be stiffering? should you be stiffering? should they be stiffering?
Perfecto
should I have stiffered? should you have stiffered? should he have stiffered? should we have stiffered? should you have stiffered? should they have stiffered?
Perfecto con V-ing
should I have been stiffering? should you have been stiffering? should he have been stiffering? should we have been stiffering? should you have been stiffering? should they have been stiffering?
Forma interro-negativa
Forma simple
shouldn't I stiffer? shouldn't you stiffer? shouldn't he stiffer? shouldn't we stiffer? shouldn't you stiffer? shouldn't they stiffer?
Forma con V-ing
shouldn't I be stiffering? shouldn't you be stiffering? shouldn't he be stiffering? shouldn't we be stiffering? shouldn't you be stiffering? shouldn't they be stiffering?
Perfecto
shouldn't I have stiffered? shouldn't you have stiffered? shouldn't he have stiffered? shouldn't we have stiffered? shouldn't you have stiffered? shouldn't they have stiffered?
Perfecto con V-ing
shouldn't I have been stiffering? shouldn't you have been stiffering? shouldn't he have been stiffering? shouldn't we have been stiffering? shouldn't you have been stiffering? shouldn't they have been stiffering?