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