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