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