I'd be propagating you'd be propagating he'd be propagating we'd be propagating you'd be propagating they'd be propagating
Perfect
I should've propagated you should've propagated he should've propagated we should've propagated you should've propagated they should've propagated
V-ing perfect
I should've been propagating you should've been propagating he should've been propagating we should've been propagating you should've been propagating they should've been propagating
Negation
Simple form
I shouldn't propagate you shouldn't propagate he shouldn't propagate we shouldn't propagate you shouldn't propagate they shouldn't propagate
V-ing form
I shouldn't be propagating you shouldn't be propagating he shouldn't be propagating we shouldn't be propagating you shouldn't be propagating they shouldn't be propagating
Perfect
I shouldn't have propagated you shouldn't have propagated he shouldn't have propagated we shouldn't have propagated you shouldn't have propagated they shouldn't have propagated
V-ing perfect
I shouldn't have been propagating you shouldn't have been propagating he shouldn't have been propagating we shouldn't have been propagating you shouldn't have been propagating they shouldn't have been propagating
Interrogative form
Simple form
should I propagate? should you propagate? should he propagate? should we propagate? should you propagate? should they propagate?
V-ing form
should I be propagating? should you be propagating? should he be propagating? should we be propagating? should you be propagating? should they be propagating?
Perfect
should I have propagated? should you have propagated? should he have propagated? should we have propagated? should you have propagated? should they have propagated?
V-ing perfect
should I have been propagating? should you have been propagating? should he have been propagating? should we have been propagating? should you have been propagating? should they have been propagating?
Interro-negative form
Simple form
shouldn't I propagate? shouldn't you propagate? shouldn't he propagate? shouldn't we propagate? shouldn't you propagate? shouldn't they propagate?
V-ing form
shouldn't I be propagating? shouldn't you be propagating? shouldn't he be propagating? shouldn't we be propagating? shouldn't you be propagating? shouldn't they be propagating?
Perfect
shouldn't I have propagated? shouldn't you have propagated? shouldn't he have propagated? shouldn't we have propagated? shouldn't you have propagated? shouldn't they have propagated?
V-ing perfect
shouldn't I have been propagating? shouldn't you have been propagating? shouldn't he have been propagating? shouldn't we have been propagating? shouldn't you have been propagating? shouldn't they have been propagating?