I should bus you should bus he should bus we should bus you should bus they should bus
V-ing form
I should be bussing you should be bussing he should be bussing we should be bussing you should be bussing they should be bussing
Perfect
I should have bussed you should have bussed he should have bussed we should have bussed you should have bussed they should have bussed
V-ing perfect
I should have been bussing you should have been bussing he should have been bussing we should have been bussing you should have been bussing they should have been bussing
Negation
Simple form
I should not bus you should not bus he should not bus we should not bus you should not bus they should not bus
V-ing form
I should not be bussing you should not be bussing he should not be bussing we should not be bussing you should not be bussing they should not be bussing
Perfect
I should not have bussed you should not have bussed he should not have bussed we should not have bussed you should not have bussed they should not have bussed
V-ing perfect
I should not have been bussing you should not have been bussing he should not have been bussing we should not have been bussing you should not have been bussing they should not have been bussing
Interrogative form
Simple form
should I bus? should you bus? should he bus? should we bus? should you bus? should they bus?
V-ing form
should I be bussing? should you be bussing? should he be bussing? should we be bussing? should you be bussing? should they be bussing?
Perfect
should I have bussed? should you have bussed? should he have bussed? should we have bussed? should you have bussed? should they have bussed?
V-ing perfect
should I have been bussing? should you have been bussing? should he have been bussing? should we have been bussing? should you have been bussing? should they have been bussing?
Interro-negative form
Simple form
should I not bus? should you not bus? should he not bus? should we not bus? should you not bus? should they not bus?
V-ing form
should I not be bussing? should you not be bussing? should he not be bussing? should we not be bussing? should you not be bussing? should they not be bussing?
Perfect
should I not have bussed? should you not have bussed? should he not have bussed? should we not have bussed? should you not have bussed? should they not have bussed?
V-ing perfect
should I not have been bussing? should you not have been bussing? should he not have been bussing? should we not have been bussing? should you not have been bussing? should they not have been bussing?