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