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