I should gradate you should gradate he should gradate we should gradate you should gradate they should gradate
V-ing form
I should be gradating you should be gradating he should be gradating we should be gradating you should be gradating they should be gradating
Perfect
I should have gradated you should have gradated he should have gradated we should have gradated you should have gradated they should have gradated
V-ing perfect
I should have been gradating you should have been gradating he should have been gradating we should have been gradating you should have been gradating they should have been gradating
Negation
Simple form
I should not gradate you should not gradate he should not gradate we should not gradate you should not gradate they should not gradate
V-ing form
I should not be gradating you should not be gradating he should not be gradating we should not be gradating you should not be gradating they should not be gradating
Perfect
I should not have gradated you should not have gradated he should not have gradated we should not have gradated you should not have gradated they should not have gradated
V-ing perfect
I should not have been gradating you should not have been gradating he should not have been gradating we should not have been gradating you should not have been gradating they should not 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
should I not gradate? should you not gradate? should he not gradate? should we not gradate? should you not gradate? should they not gradate?
V-ing form
should I not be gradating? should you not be gradating? should he not be gradating? should we not be gradating? should you not be gradating? should they not be gradating?
Perfect
should I not have gradated? should you not have gradated? should he not have gradated? should we not have gradated? should you not have gradated? should they not have gradated?
V-ing perfect
should I not have been gradating? should you not have been gradating? should he not have been gradating? should we not have been gradating? should you not have been gradating? should they not have been gradating?