I should preregulate you should preregulate he should preregulate we should preregulate you should preregulate they should preregulate
V-ing form
I should be preregulating you should be preregulating he should be preregulating we should be preregulating you should be preregulating they should be preregulating
Perfect
I should have preregulated you should have preregulated he should have preregulated we should have preregulated you should have preregulated they should have preregulated
V-ing perfect
I should have been preregulating you should have been preregulating he should have been preregulating we should have been preregulating you should have been preregulating they should have been preregulating
Negation
Simple form
I should not preregulate you should not preregulate he should not preregulate we should not preregulate you should not preregulate they should not preregulate
V-ing form
I should not be preregulating you should not be preregulating he should not be preregulating we should not be preregulating you should not be preregulating they should not be preregulating
Perfect
I should not have preregulated you should not have preregulated he should not have preregulated we should not have preregulated you should not have preregulated they should not have preregulated
V-ing perfect
I should not have been preregulating you should not have been preregulating he should not have been preregulating we should not have been preregulating you should not have been preregulating they should not have been preregulating
Interrogative form
Simple form
should I preregulate? should you preregulate? should he preregulate? should we preregulate? should you preregulate? should they preregulate?
V-ing form
should I be preregulating? should you be preregulating? should he be preregulating? should we be preregulating? should you be preregulating? should they be preregulating?
Perfect
should I have preregulated? should you have preregulated? should he 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 he have been preregulating? should we have been preregulating? should you have been preregulating? should they have been preregulating?
Interro-negative form
Simple form
should I not preregulate? should you not preregulate? should he not preregulate? should we not preregulate? should you not preregulate? should they not preregulate?
V-ing form
should I not be preregulating? should you not be preregulating? should he not be preregulating? should we not be preregulating? should you not be preregulating? should they not be preregulating?
Perfect
should I not have preregulated? should you not have preregulated? should he not have preregulated? should we not have preregulated? should you not have preregulated? should they not have preregulated?
V-ing perfect
should I not have been preregulating? should you not have been preregulating? should he not have been preregulating? should we not have been preregulating? should you not have been preregulating? should they not have been preregulating?