should blunder
Regular verb: blunder - blundered- blundered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd blunder
you'd blunder
she'd blunder
we'd blunder
you'd blunder
they'd blunder 	I'd be blundering
you'd be blundering
she'd be blundering
we'd be blundering
you'd be blundering
they'd be blundering	I should've blundered
you should've blundered
she should've blundered
we should've blundered
you should've blundered
they should've blundered	I should've been blundering
you should've been blundering
she should've been blundering
we should've been blundering
you should've been blundering
they should've been blundering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't blunder
you shouldn't blunder
she shouldn't blunder
we shouldn't blunder
you shouldn't blunder
they shouldn't blunder 	I shouldn't be blundering
you shouldn't be blundering
she shouldn't be blundering
we shouldn't be blundering
you shouldn't be blundering
they shouldn't be blundering	I shouldn't have blundered
you shouldn't have blundered
she shouldn't have blundered
we shouldn't have blundered
you shouldn't have blundered
they shouldn't have blundered	I shouldn't have been blundering
you shouldn't have been blundering
she 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 	V-ing form 	Perfect 	V-ing perfect 	
should I blunder?
should you blunder?
should she blunder?
should we blunder?
should you blunder?
should they blunder? 	should I be blundering?
should you be blundering?
should she be blundering?
should we be blundering?
should you be blundering?
should they be blundering? 	should I have blundered?
should you have blundered?
should she have blundered?
should we have blundered?
should you have blundered?
should they have blundered? 	should I have been blundering?
should you have been blundering?
should she have been blundering?
should we have been blundering?
should you have been blundering?
should they have been blundering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I blunder?
shouldn't you blunder?
shouldn't she blunder?
shouldn't we blunder?
shouldn't you blunder?
shouldn't they blunder? 	shouldn't I be blundering?
shouldn't you be blundering?
shouldn't she be blundering?
shouldn't we be blundering?
shouldn't you be blundering?
shouldn't they be blundering? 	shouldn't I have blundered?
shouldn't you have blundered?
shouldn't she have blundered?
shouldn't we have blundered?
shouldn't you have blundered?
shouldn't they have blundered? 	shouldn't I have been blundering?
shouldn't you have been blundering?
shouldn't she have been blundering?
shouldn't we have been blundering?
shouldn't you have been blundering?
shouldn't they have been blundering?