I should invest you should invest she should invest we should invest you should invest they should invest
V-ing form
I should be investing you should be investing she should be investing we should be investing you should be investing they should be investing
Perfect
I should have invested you should have invested she should have invested we should have invested you should have invested they should have invested
V-ing perfect
I should have been investing you should have been investing she should have been investing we should have been investing you should have been investing they should have been investing
Negation
Simple form
I should not invest you should not invest she should not invest we should not invest you should not invest they should not invest
V-ing form
I should not be investing you should not be investing she should not be investing we should not be investing you should not be investing they should not be investing
Perfect
I should not have invested you should not have invested she should not have invested we should not have invested you should not have invested they should not have invested
V-ing perfect
I should not have been investing you should not have been investing she should not have been investing we should not have been investing you should not have been investing they should not have been investing
Interrogative form
Simple form
should I invest? should you invest? should she invest? should we invest? should you invest? should they invest?
V-ing form
should I be investing? should you be investing? should she be investing? should we be investing? should you be investing? should they be investing?
Perfect
should I have invested? should you have invested? should she have invested? should we have invested? should you have invested? should they have invested?
V-ing perfect
should I have been investing? should you have been investing? should she have been investing? should we have been investing? should you have been investing? should they have been investing?
Interro-negative form
Simple form
should I not invest? should you not invest? should she not invest? should we not invest? should you not invest? should they not invest?
V-ing form
should I not be investing? should you not be investing? should she not be investing? should we not be investing? should you not be investing? should they not be investing?
Perfect
should I not have invested? should you not have invested? should she not have invested? should we not have invested? should you not have invested? should they not have invested?
V-ing perfect
should I not have been investing? should you not have been investing? should she not have been investing? should we not have been investing? should you not have been investing? should they not have been investing?