I should besiege you should besiege she should besiege we should besiege you should besiege they should besiege
V-ing form
I should be besieging you should be besieging she should be besieging we should be besieging you should be besieging they should be besieging
Perfect
I should have besieged you should have besieged she should have besieged we should have besieged you should have besieged they should have besieged
V-ing perfect
I should have been besieging you should have been besieging she should have been besieging we should have been besieging you should have been besieging they should have been besieging
Negation
Simple form
I should not besiege you should not besiege she should not besiege we should not besiege you should not besiege they should not besiege
V-ing form
I should not be besieging you should not be besieging she should not be besieging we should not be besieging you should not be besieging they should not be besieging
Perfect
I should not have besieged you should not have besieged she should not have besieged we should not have besieged you should not have besieged they should not have besieged
V-ing perfect
I should not have been besieging you should not have been besieging she should not have been besieging we should not have been besieging you should not have been besieging they should not have been besieging
Interrogative form
Simple form
should I besiege? should you besiege? should she besiege? should we besiege? should you besiege? should they besiege?
V-ing form
should I be besieging? should you be besieging? should she be besieging? should we be besieging? should you be besieging? should they be besieging?
Perfect
should I have besieged? should you have besieged? should she have besieged? should we have besieged? should you have besieged? should they have besieged?
V-ing perfect
should I have been besieging? should you have been besieging? should she have been besieging? should we have been besieging? should you have been besieging? should they have been besieging?
Interro-negative form
Simple form
should I not besiege? should you not besiege? should she not besiege? should we not besiege? should you not besiege? should they not besiege?
V-ing form
should I not be besieging? should you not be besieging? should she not be besieging? should we not be besieging? should you not be besieging? should they not be besieging?
Perfect
should I not have besieged? should you not have besieged? should she not have besieged? should we not have besieged? should you not have besieged? should they not have besieged?
V-ing perfect
should I not have been besieging? should you not have been besieging? should she not have been besieging? should we not have been besieging? should you not have been besieging? should they not have been besieging?