should dummy
Regular verb: dummy - dummied- dummied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd dummy
you'd dummy
he'd dummy
we'd dummy
you'd dummy
they'd dummy 	I'd be dummying
you'd be dummying
he'd be dummying
we'd be dummying
you'd be dummying
they'd be dummying	I should've dummied
you should've dummied
he should've dummied
we should've dummied
you should've dummied
they should've dummied	I should've been dummying
you should've been dummying
he should've been dummying
we should've been dummying
you should've been dummying
they should've been dummying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't dummy
you shouldn't dummy
he shouldn't dummy
we shouldn't dummy
you shouldn't dummy
they shouldn't dummy 	I shouldn't be dummying
you shouldn't be dummying
he shouldn't be dummying
we shouldn't be dummying
you shouldn't be dummying
they shouldn't be dummying	I shouldn't have dummied
you shouldn't have dummied
he shouldn't have dummied
we shouldn't have dummied
you shouldn't have dummied
they shouldn't have dummied	I shouldn't have been dummying
you shouldn't have been dummying
he shouldn't have been dummying
we shouldn't have been dummying
you shouldn't have been dummying
they shouldn't have been dummying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I dummy?
should you dummy?
should he dummy?
should we dummy?
should you dummy?
should they dummy? 	should I be dummying?
should you be dummying?
should he be dummying?
should we be dummying?
should you be dummying?
should they be dummying? 	should I have dummied?
should you have dummied?
should he have dummied?
should we have dummied?
should you have dummied?
should they have dummied? 	should I have been dummying?
should you have been dummying?
should he have been dummying?
should we have been dummying?
should you have been dummying?
should they have been dummying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I dummy?
shouldn't you dummy?
shouldn't he dummy?
shouldn't we dummy?
shouldn't you dummy?
shouldn't they dummy? 	shouldn't I be dummying?
shouldn't you be dummying?
shouldn't he be dummying?
shouldn't we be dummying?
shouldn't you be dummying?
shouldn't they be dummying? 	shouldn't I have dummied?
shouldn't you have dummied?
shouldn't he have dummied?
shouldn't we have dummied?
shouldn't you have dummied?
shouldn't they have dummied? 	shouldn't I have been dummying?
shouldn't you have been dummying?
shouldn't he have been dummying?
shouldn't we have been dummying?
shouldn't you have been dummying?
shouldn't they have been dummying?