I'd post you'd post she'd post we'd post you'd post they'd post
V-ing form
I'd be posting you'd be posting she'd be posting we'd be posting you'd be posting they'd be posting
Perfect
I should've posted you should've posted she should've posted we should've posted you should've posted they should've posted
V-ing perfect
I should've been posting you should've been posting she should've been posting we should've been posting you should've been posting they should've been posting
Negation
Simple form
I shouldn't post you shouldn't post she shouldn't post we shouldn't post you shouldn't post they shouldn't post
V-ing form
I shouldn't be posting you shouldn't be posting she shouldn't be posting we shouldn't be posting you shouldn't be posting they shouldn't be posting
Perfect
I shouldn't have posted you shouldn't have posted she shouldn't have posted we shouldn't have posted you shouldn't have posted they shouldn't have posted
V-ing perfect
I shouldn't have been posting you shouldn't have been posting she shouldn't have been posting we shouldn't have been posting you shouldn't have been posting they shouldn't have been posting
Interrogative form
Simple form
should I post? should you post? should she post? should we post? should you post? should they post?
V-ing form
should I be posting? should you be posting? should she be posting? should we be posting? should you be posting? should they be posting?
Perfect
should I have posted? should you have posted? should she have posted? should we have posted? should you have posted? should they have posted?
V-ing perfect
should I have been posting? should you have been posting? should she have been posting? should we have been posting? should you have been posting? should they have been posting?
Interro-negative form
Simple form
shouldn't I post? shouldn't you post? shouldn't she post? shouldn't we post? shouldn't you post? shouldn't they post?
V-ing form
shouldn't I be posting? shouldn't you be posting? shouldn't she be posting? shouldn't we be posting? shouldn't you be posting? shouldn't they be posting?
Perfect
shouldn't I have posted? shouldn't you have posted? shouldn't she have posted? shouldn't we have posted? shouldn't you have posted? shouldn't they have posted?
V-ing perfect
shouldn't I have been posting? shouldn't you have been posting? shouldn't she have been posting? shouldn't we have been posting? shouldn't you have been posting? shouldn't they have been posting?