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