I'd be preregulating you'd be preregulating she'd be preregulating we'd be preregulating you'd be preregulating they'd be preregulating
Perfect
I should've preregulated you should've preregulated she should've preregulated we should've preregulated you should've preregulated they should've preregulated
V-ing perfect
I should've been preregulating you should've been preregulating she should've been preregulating we should've been preregulating you should've been preregulating they should've been preregulating
Negation
Simple form
I shouldn't preregulate you shouldn't preregulate she shouldn't preregulate we shouldn't preregulate you shouldn't preregulate they shouldn't preregulate
V-ing form
I shouldn't be preregulating you shouldn't be preregulating she shouldn't be preregulating we shouldn't be preregulating you shouldn't be preregulating they shouldn't be preregulating
Perfect
I shouldn't have preregulated you shouldn't have preregulated she shouldn't have preregulated we shouldn't have preregulated you shouldn't have preregulated they shouldn't have preregulated
V-ing perfect
I shouldn't have been preregulating you shouldn't have been preregulating she shouldn't have been preregulating we shouldn't have been preregulating you shouldn't have been preregulating they shouldn't have been preregulating
Interrogative form
Simple form
should I preregulate? should you preregulate? should she preregulate? should we preregulate? should you preregulate? should they preregulate?
V-ing form
should I be preregulating? should you be preregulating? should she be preregulating? should we be preregulating? should you be preregulating? should they be preregulating?
Perfect
should I have preregulated? should you have preregulated? should she have preregulated? should we have preregulated? should you have preregulated? should they have preregulated?
V-ing perfect
should I have been preregulating? should you have been preregulating? should she have been preregulating? should we have been preregulating? should you have been preregulating? should they have been preregulating?
Interro-negative form
Simple form
shouldn't I preregulate? shouldn't you preregulate? shouldn't she preregulate? shouldn't we preregulate? shouldn't you preregulate? shouldn't they preregulate?
V-ing form
shouldn't I be preregulating? shouldn't you be preregulating? shouldn't she be preregulating? shouldn't we be preregulating? shouldn't you be preregulating? shouldn't they be preregulating?
Perfect
shouldn't I have preregulated? shouldn't you have preregulated? shouldn't she have preregulated? shouldn't we have preregulated? shouldn't you have preregulated? shouldn't they have preregulated?
V-ing perfect
shouldn't I have been preregulating? shouldn't you have been preregulating? shouldn't she have been preregulating? shouldn't we have been preregulating? shouldn't you have been preregulating? shouldn't they have been preregulating?