I should contest you should contest he should contest we should contest you should contest they should contest
V-ing form
I should be contesting you should be contesting he should be contesting we should be contesting you should be contesting they should be contesting
Perfect
I should have contested you should have contested he should have contested we should have contested you should have contested they should have contested
V-ing perfect
I should have been contesting you should have been contesting he should have been contesting we should have been contesting you should have been contesting they should have been contesting
Negation
Simple form
I should not contest you should not contest he should not contest we should not contest you should not contest they should not contest
V-ing form
I should not be contesting you should not be contesting he should not be contesting we should not be contesting you should not be contesting they should not be contesting
Perfect
I should not have contested you should not have contested he should not have contested we should not have contested you should not have contested they should not have contested
V-ing perfect
I should not have been contesting you should not have been contesting he should not have been contesting we should not have been contesting you should not have been contesting they should not have been contesting
Interrogative form
Simple form
should I contest? should you contest? should he contest? should we contest? should you contest? should they contest?
V-ing form
should I be contesting? should you be contesting? should he be contesting? should we be contesting? should you be contesting? should they be contesting?
Perfect
should I have contested? should you have contested? should he have contested? should we have contested? should you have contested? should they have contested?
V-ing perfect
should I have been contesting? should you have been contesting? should he have been contesting? should we have been contesting? should you have been contesting? should they have been contesting?
Interro-negative form
Simple form
should I not contest? should you not contest? should he not contest? should we not contest? should you not contest? should they not contest?
V-ing form
should I not be contesting? should you not be contesting? should he not be contesting? should we not be contesting? should you not be contesting? should they not be contesting?
Perfect
should I not have contested? should you not have contested? should he not have contested? should we not have contested? should you not have contested? should they not have contested?
V-ing perfect
should I not have been contesting? should you not have been contesting? should he not have been contesting? should we not have been contesting? should you not have been contesting? should they not have been contesting?