I should breakfast you should breakfast he should breakfast we should breakfast you should breakfast they should breakfast
V-ing form
I should be breakfasting you should be breakfasting he should be breakfasting we should be breakfasting you should be breakfasting they should be breakfasting
Perfect
I should have breakfasted you should have breakfasted he should have breakfasted we should have breakfasted you should have breakfasted they should have breakfasted
V-ing perfect
I should have been breakfasting you should have been breakfasting he should have been breakfasting we should have been breakfasting you should have been breakfasting they should have been breakfasting
Negation
Simple form
I should not breakfast you should not breakfast he should not breakfast we should not breakfast you should not breakfast they should not breakfast
V-ing form
I should not be breakfasting you should not be breakfasting he should not be breakfasting we should not be breakfasting you should not be breakfasting they should not be breakfasting
Perfect
I should not have breakfasted you should not have breakfasted he should not have breakfasted we should not have breakfasted you should not have breakfasted they should not have breakfasted
V-ing perfect
I should not have been breakfasting you should not have been breakfasting he should not have been breakfasting we should not have been breakfasting you should not have been breakfasting they should not have been breakfasting
Interrogative form
Simple form
should I breakfast? should you breakfast? should he breakfast? should we breakfast? should you breakfast? should they breakfast?
V-ing form
should I be breakfasting? should you be breakfasting? should he be breakfasting? should we be breakfasting? should you be breakfasting? should they be breakfasting?
Perfect
should I have breakfasted? should you have breakfasted? should he have breakfasted? should we have breakfasted? should you have breakfasted? should they have breakfasted?
V-ing perfect
should I have been breakfasting? should you have been breakfasting? should he have been breakfasting? should we have been breakfasting? should you have been breakfasting? should they have been breakfasting?
Interro-negative form
Simple form
should I not breakfast? should you not breakfast? should he not breakfast? should we not breakfast? should you not breakfast? should they not breakfast?
V-ing form
should I not be breakfasting? should you not be breakfasting? should he not be breakfasting? should we not be breakfasting? should you not be breakfasting? should they not be breakfasting?
Perfect
should I not have breakfasted? should you not have breakfasted? should he not have breakfasted? should we not have breakfasted? should you not have breakfasted? should they not have breakfasted?
V-ing perfect
should I not have been breakfasting? should you not have been breakfasting? should he not have been breakfasting? should we not have been breakfasting? should you not have been breakfasting? should they not have been breakfasting?