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