I should function you should function she should function we should function you should function they should function
V-ing form
I should be functioning you should be functioning she should be functioning we should be functioning you should be functioning they should be functioning
Perfect
I should have functioned you should have functioned she should have functioned we should have functioned you should have functioned they should have functioned
V-ing perfect
I should have been functioning you should have been functioning she should have been functioning we should have been functioning you should have been functioning they should have been functioning
Negation
Simple form
I should not function you should not function she should not function we should not function you should not function they should not function
V-ing form
I should not be functioning you should not be functioning she should not be functioning we should not be functioning you should not be functioning they should not be functioning
Perfect
I should not have functioned you should not have functioned she should not have functioned we should not have functioned you should not have functioned they should not have functioned
V-ing perfect
I should not have been functioning you should not have been functioning she should not have been functioning we should not have been functioning you should not have been functioning they should not have been functioning
Interrogative form
Simple form
should I function? should you function? should she function? should we function? should you function? should they function?
V-ing form
should I be functioning? should you be functioning? should she be functioning? should we be functioning? should you be functioning? should they be functioning?
Perfect
should I have functioned? should you have functioned? should she have functioned? should we have functioned? should you have functioned? should they have functioned?
V-ing perfect
should I have been functioning? should you have been functioning? should she have been functioning? should we have been functioning? should you have been functioning? should they have been functioning?
Interro-negative form
Simple form
should I not function? should you not function? should she not function? should we not function? should you not function? should they not function?
V-ing form
should I not be functioning? should you not be functioning? should she not be functioning? should we not be functioning? should you not be functioning? should they not be functioning?
Perfect
should I not have functioned? should you not have functioned? should she not have functioned? should we not have functioned? should you not have functioned? should they not have functioned?
V-ing perfect
should I not have been functioning? should you not have been functioning? should she not have been functioning? should we not have been functioning? should you not have been functioning? should they not have been functioning?