I should countermand you should countermand she should countermand we should countermand you should countermand they should countermand
V-ing form
I should be countermanding you should be countermanding she should be countermanding we should be countermanding you should be countermanding they should be countermanding
Perfect
I should have countermanded you should have countermanded she should have countermanded we should have countermanded you should have countermanded they should have countermanded
V-ing perfect
I should have been countermanding you should have been countermanding she should have been countermanding we should have been countermanding you should have been countermanding they should have been countermanding
Negation
Simple form
I should not countermand you should not countermand she should not countermand we should not countermand you should not countermand they should not countermand
V-ing form
I should not be countermanding you should not be countermanding she should not be countermanding we should not be countermanding you should not be countermanding they should not be countermanding
Perfect
I should not have countermanded you should not have countermanded she should not have countermanded we should not have countermanded you should not have countermanded they should not have countermanded
V-ing perfect
I should not have been countermanding you should not have been countermanding she should not have been countermanding we should not have been countermanding you should not have been countermanding they should not have been countermanding
Interrogative form
Simple form
should I countermand? should you countermand? should she countermand? should we countermand? should you countermand? should they countermand?
V-ing form
should I be countermanding? should you be countermanding? should she be countermanding? should we be countermanding? should you be countermanding? should they be countermanding?
Perfect
should I have countermanded? should you have countermanded? should she have countermanded? should we have countermanded? should you have countermanded? should they have countermanded?
V-ing perfect
should I have been countermanding? should you have been countermanding? should she have been countermanding? should we have been countermanding? should you have been countermanding? should they have been countermanding?
Interro-negative form
Simple form
should I not countermand? should you not countermand? should she not countermand? should we not countermand? should you not countermand? should they not countermand?
V-ing form
should I not be countermanding? should you not be countermanding? should she not be countermanding? should we not be countermanding? should you not be countermanding? should they not be countermanding?
Perfect
should I not have countermanded? should you not have countermanded? should she not have countermanded? should we not have countermanded? should you not have countermanded? should they not have countermanded?
V-ing perfect
should I not have been countermanding? should you not have been countermanding? should she not have been countermanding? should we not have been countermanding? should you not have been countermanding? should they not have been countermanding?