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