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