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