I'd post you'd post he'd post we'd post you'd post they'd post
V-ing form
I'd be posting you'd be posting he'd be posting we'd be posting you'd be posting they'd be posting
Perfect
I should've posted you should've posted he 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 he 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 he 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 he 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 he 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 he 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 he post? should we post? should you post? should they post?
V-ing form
should I be posting? should you be posting? should he be posting? should we be posting? should you be posting? should they be posting?
Perfect
should I have posted? should you have posted? should he 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 he 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 he 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 he 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 he 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 he have been posting? shouldn't we have been posting? shouldn't you have been posting? shouldn't they have been posting?