I should database you should database she should database we should database you should database they should database
V-ing form
I should be databasing you should be databasing she should be databasing we should be databasing you should be databasing they should be databasing
Perfect
I should have databased you should have databased she should have databased we should have databased you should have databased they should have databased
V-ing perfect
I should have been databasing you should have been databasing she should have been databasing we should have been databasing you should have been databasing they should have been databasing
Negation
Simple form
I should not database you should not database she should not database we should not database you should not database they should not database
V-ing form
I should not be databasing you should not be databasing she should not be databasing we should not be databasing you should not be databasing they should not be databasing
Perfect
I should not have databased you should not have databased she should not have databased we should not have databased you should not have databased they should not have databased
V-ing perfect
I should not have been databasing you should not have been databasing she should not have been databasing we should not have been databasing you should not have been databasing they should not have been databasing
Interrogative form
Simple form
should I database? should you database? should she database? should we database? should you database? should they database?
V-ing form
should I be databasing? should you be databasing? should she be databasing? should we be databasing? should you be databasing? should they be databasing?
Perfect
should I have databased? should you have databased? should she have databased? should we have databased? should you have databased? should they have databased?
V-ing perfect
should I have been databasing? should you have been databasing? should she have been databasing? should we have been databasing? should you have been databasing? should they have been databasing?
Interro-negative form
Simple form
should I not database? should you not database? should she not database? should we not database? should you not database? should they not database?
V-ing form
should I not be databasing? should you not be databasing? should she not be databasing? should we not be databasing? should you not be databasing? should they not be databasing?
Perfect
should I not have databased? should you not have databased? should she not have databased? should we not have databased? should you not have databased? should they not have databased?
V-ing perfect
should I not have been databasing? should you not have been databasing? should she not have been databasing? should we not have been databasing? should you not have been databasing? should they not have been databasing?