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