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