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