I should billet you should billet she should billet we should billet you should billet they should billet
V-ing form
I should be billeting you should be billeting she should be billeting we should be billeting you should be billeting they should be billeting
Perfect
I should have billeted you should have billeted she should have billeted we should have billeted you should have billeted they should have billeted
V-ing perfect
I should have been billeting you should have been billeting she should have been billeting we should have been billeting you should have been billeting they should have been billeting
Negation
Simple form
I should not billet you should not billet she should not billet we should not billet you should not billet they should not billet
V-ing form
I should not be billeting you should not be billeting she should not be billeting we should not be billeting you should not be billeting they should not be billeting
Perfect
I should not have billeted you should not have billeted she should not have billeted we should not have billeted you should not have billeted they should not have billeted
V-ing perfect
I should not have been billeting you should not have been billeting she should not have been billeting we should not have been billeting you should not have been billeting they should not have been billeting
Interrogative form
Simple form
should I billet? should you billet? should she billet? should we billet? should you billet? should they billet?
V-ing form
should I be billeting? should you be billeting? should she be billeting? should we be billeting? should you be billeting? should they be billeting?
Perfect
should I have billeted? should you have billeted? should she have billeted? should we have billeted? should you have billeted? should they have billeted?
V-ing perfect
should I have been billeting? should you have been billeting? should she have been billeting? should we have been billeting? should you have been billeting? should they have been billeting?
Interro-negative form
Simple form
should I not billet? should you not billet? should she not billet? should we not billet? should you not billet? should they not billet?
V-ing form
should I not be billeting? should you not be billeting? should she not be billeting? should we not be billeting? should you not be billeting? should they not be billeting?
Perfect
should I not have billeted? should you not have billeted? should she not have billeted? should we not have billeted? should you not have billeted? should they not have billeted?
V-ing perfect
should I not have been billeting? should you not have been billeting? should she not have been billeting? should we not have been billeting? should you not have been billeting? should they not have been billeting?