I'd be proposing you'd be proposing he'd be proposing we'd be proposing you'd be proposing they'd be proposing
Perfect
I should've proposed you should've proposed he 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 he 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 he 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 he 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 he 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 he 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 he propose? should we propose? should you propose? should they propose?
V-ing form
should I be proposing? should you be proposing? should he be proposing? should we be proposing? should you be proposing? should they be proposing?
Perfect
should I have proposed? should you have proposed? should he 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 he 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 he 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 he 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 he 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 he have been proposing? shouldn't we have been proposing? shouldn't you have been proposing? shouldn't they have been proposing?