I'd be contributing you'd be contributing she'd be contributing we'd be contributing you'd be contributing they'd be contributing
Perfect
I should've contributed you should've contributed she should've contributed we should've contributed you should've contributed they should've contributed
Perfect en V-ing
I should've been contributing you should've been contributing she should've been contributing we should've been contributing you should've been contributing they should've been contributing
Négation
Forme simple
I shouldn't contribute you shouldn't contribute she shouldn't contribute we shouldn't contribute you shouldn't contribute they shouldn't contribute
Forme en V-ing
I shouldn't be contributing you shouldn't be contributing she shouldn't be contributing we shouldn't be contributing you shouldn't be contributing they shouldn't be contributing
Perfect
I shouldn't have contributed you shouldn't have contributed she shouldn't have contributed we shouldn't have contributed you shouldn't have contributed they shouldn't have contributed
Perfect en V-ing
I shouldn't have been contributing you shouldn't have been contributing she shouldn't have been contributing we shouldn't have been contributing you shouldn't have been contributing they shouldn't have been contributing
Forme interrogative
Forme simple
should I contribute? should you contribute? should she contribute? should we contribute? should you contribute? should they contribute?
Forme en V-ing
should I be contributing? should you be contributing? should she be contributing? should we be contributing? should you be contributing? should they be contributing?
Perfect
should I have contributed? should you have contributed? should she have contributed? should we have contributed? should you have contributed? should they have contributed?
Perfect en V-ing
should I have been contributing? should you have been contributing? should she have been contributing? should we have been contributing? should you have been contributing? should they have been contributing?
Forme interro-négative
Forme simple
shouldn't I contribute? shouldn't you contribute? shouldn't she contribute? shouldn't we contribute? shouldn't you contribute? shouldn't they contribute?
Forme en V-ing
shouldn't I be contributing? shouldn't you be contributing? shouldn't she be contributing? shouldn't we be contributing? shouldn't you be contributing? shouldn't they be contributing?
Perfect
shouldn't I have contributed? shouldn't you have contributed? shouldn't she have contributed? shouldn't we have contributed? shouldn't you have contributed? shouldn't they have contributed?
Perfect en V-ing
shouldn't I have been contributing? shouldn't you have been contributing? shouldn't she have been contributing? shouldn't we have been contributing? shouldn't you have been contributing? shouldn't they have been contributing?