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