I should attend you should attend he should attend we should attend you should attend they should attend
V-ing form
I should be attending you should be attending he should be attending we should be attending you should be attending they should be attending
Perfect
I should have attended you should have attended he should have attended we should have attended you should have attended they should have attended
V-ing perfect
I should have been attending you should have been attending he should have been attending we should have been attending you should have been attending they should have been attending
Negation
Simple form
I should not attend you should not attend he should not attend we should not attend you should not attend they should not attend
V-ing form
I should not be attending you should not be attending he should not be attending we should not be attending you should not be attending they should not be attending
Perfect
I should not have attended you should not have attended he should not have attended we should not have attended you should not have attended they should not have attended
V-ing perfect
I should not have been attending you should not have been attending he should not have been attending we should not have been attending you should not have been attending they should not have been attending
Interrogative form
Simple form
should I attend? should you attend? should he attend? should we attend? should you attend? should they attend?
V-ing form
should I be attending? should you be attending? should he be attending? should we be attending? should you be attending? should they be attending?
Perfect
should I have attended? should you have attended? should he have attended? should we have attended? should you have attended? should they have attended?
V-ing perfect
should I have been attending? should you have been attending? should he have been attending? should we have been attending? should you have been attending? should they have been attending?
Interro-negative form
Simple form
should I not attend? should you not attend? should he not attend? should we not attend? should you not attend? should they not attend?
V-ing form
should I not be attending? should you not be attending? should he not be attending? should we not be attending? should you not be attending? should they not be attending?
Perfect
should I not have attended? should you not have attended? should he not have attended? should we not have attended? should you not have attended? should they not have attended?
V-ing perfect
should I not have been attending? should you not have been attending? should he not have been attending? should we not have been attending? should you not have been attending? should they not have been attending?