I should drain you should drain she should drain we should drain you should drain they should drain
V-ing form
I should be draining you should be draining she should be draining we should be draining you should be draining they should be draining
Perfect
I should have drained you should have drained she should have drained we should have drained you should have drained they should have drained
V-ing perfect
I should have been draining you should have been draining she should have been draining we should have been draining you should have been draining they should have been draining
Negation
Simple form
I should not drain you should not drain she should not drain we should not drain you should not drain they should not drain
V-ing form
I should not be draining you should not be draining she should not be draining we should not be draining you should not be draining they should not be draining
Perfect
I should not have drained you should not have drained she should not have drained we should not have drained you should not have drained they should not have drained
V-ing perfect
I should not have been draining you should not have been draining she should not have been draining we should not have been draining you should not have been draining they should not have been draining
Interrogative form
Simple form
should I drain? should you drain? should she drain? should we drain? should you drain? should they drain?
V-ing form
should I be draining? should you be draining? should she be draining? should we be draining? should you be draining? should they be draining?
Perfect
should I have drained? should you have drained? should she have drained? should we have drained? should you have drained? should they have drained?
V-ing perfect
should I have been draining? should you have been draining? should she have been draining? should we have been draining? should you have been draining? should they have been draining?
Interro-negative form
Simple form
should I not drain? should you not drain? should she not drain? should we not drain? should you not drain? should they not drain?
V-ing form
should I not be draining? should you not be draining? should she not be draining? should we not be draining? should you not be draining? should they not be draining?
Perfect
should I not have drained? should you not have drained? should she not have drained? should we not have drained? should you not have drained? should they not have drained?
V-ing perfect
should I not have been draining? should you not have been draining? should she not have been draining? should we not have been draining? should you not have been draining? should they not have been draining?