I should bur you should bur she should bur we should bur you should bur they should bur
V-ing form
I should be buring you should be buring she should be buring we should be buring you should be buring they should be buring
Perfect
I should have bured you should have bured she should have bured we should have bured you should have bured they should have bured
V-ing perfect
I should have been buring you should have been buring she should have been buring we should have been buring you should have been buring they should have been buring
Negation
Simple form
I should not bur you should not bur she should not bur we should not bur you should not bur they should not bur
V-ing form
I should not be buring you should not be buring she should not be buring we should not be buring you should not be buring they should not be buring
Perfect
I should not have bured you should not have bured she should not have bured we should not have bured you should not have bured they should not have bured
V-ing perfect
I should not have been buring you should not have been buring she should not have been buring we should not have been buring you should not have been buring they should not have been buring
Interrogative form
Simple form
should I bur? should you bur? should she bur? should we bur? should you bur? should they bur?
V-ing form
should I be buring? should you be buring? should she be buring? should we be buring? should you be buring? should they be buring?
Perfect
should I have bured? should you have bured? should she have bured? should we have bured? should you have bured? should they have bured?
V-ing perfect
should I have been buring? should you have been buring? should she have been buring? should we have been buring? should you have been buring? should they have been buring?
Interro-negative form
Simple form
should I not bur? should you not bur? should she not bur? should we not bur? should you not bur? should they not bur?
V-ing form
should I not be buring? should you not be buring? should she not be buring? should we not be buring? should you not be buring? should they not be buring?
Perfect
should I not have bured? should you not have bured? should she not have bured? should we not have bured? should you not have bured? should they not have bured?
V-ing perfect
should I not have been buring? should you not have been buring? should she not have been buring? should we not have been buring? should you not have been buring? should they not have been buring?