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