I'd be policing you'd be policing he'd be policing we'd be policing you'd be policing they'd be policing
Perfect
I should've policed you should've policed he should've policed we should've policed you should've policed they should've policed
V-ing perfect
I should've been policing you should've been policing he should've been policing we should've been policing you should've been policing they should've been policing
Negation
Simple form
I shouldn't police you shouldn't police he shouldn't police we shouldn't police you shouldn't police they shouldn't police
V-ing form
I shouldn't be policing you shouldn't be policing he shouldn't be policing we shouldn't be policing you shouldn't be policing they shouldn't be policing
Perfect
I shouldn't have policed you shouldn't have policed he shouldn't have policed we shouldn't have policed you shouldn't have policed they shouldn't have policed
V-ing perfect
I shouldn't have been policing you shouldn't have been policing he shouldn't have been policing we shouldn't have been policing you shouldn't have been policing they shouldn't have been policing
Interrogative form
Simple form
should I police? should you police? should he police? should we police? should you police? should they police?
V-ing form
should I be policing? should you be policing? should he be policing? should we be policing? should you be policing? should they be policing?
Perfect
should I have policed? should you have policed? should he have policed? should we have policed? should you have policed? should they have policed?
V-ing perfect
should I have been policing? should you have been policing? should he have been policing? should we have been policing? should you have been policing? should they have been policing?
Interro-negative form
Simple form
shouldn't I police? shouldn't you police? shouldn't he police? shouldn't we police? shouldn't you police? shouldn't they police?
V-ing form
shouldn't I be policing? shouldn't you be policing? shouldn't he be policing? shouldn't we be policing? shouldn't you be policing? shouldn't they be policing?
Perfect
shouldn't I have policed? shouldn't you have policed? shouldn't he have policed? shouldn't we have policed? shouldn't you have policed? shouldn't they have policed?
V-ing perfect
shouldn't I have been policing? shouldn't you have been policing? shouldn't he have been policing? shouldn't we have been policing? shouldn't you have been policing? shouldn't they have been policing?