should regrind
Irregular verb: regrind - reground- reground

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd regrind
you'd regrind
he'd regrind
we'd regrind
you'd regrind
they'd regrind 	I'd be regrinding
you'd be regrinding
he'd be regrinding
we'd be regrinding
you'd be regrinding
they'd be regrinding	I should've reground
you should've reground
he should've reground
we should've reground
you should've reground
they should've reground	I should've been regrinding
you should've been regrinding
he should've been regrinding
we should've been regrinding
you should've been regrinding
they should've been regrinding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't regrind
you shouldn't regrind
he shouldn't regrind
we shouldn't regrind
you shouldn't regrind
they shouldn't regrind 	I shouldn't be regrinding
you shouldn't be regrinding
he shouldn't be regrinding
we shouldn't be regrinding
you shouldn't be regrinding
they shouldn't be regrinding	I shouldn't have reground
you shouldn't have reground
he shouldn't have reground
we shouldn't have reground
you shouldn't have reground
they shouldn't have reground	I shouldn't have been regrinding
you shouldn't have been regrinding
he shouldn't have been regrinding
we shouldn't have been regrinding
you shouldn't have been regrinding
they shouldn't have been regrinding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I regrind?
should you regrind?
should he regrind?
should we regrind?
should you regrind?
should they regrind? 	should I be regrinding?
should you be regrinding?
should he be regrinding?
should we be regrinding?
should you be regrinding?
should they be regrinding? 	should I have reground?
should you have reground?
should he have reground?
should we have reground?
should you have reground?
should they have reground? 	should I have been regrinding?
should you have been regrinding?
should he have been regrinding?
should we have been regrinding?
should you have been regrinding?
should they have been regrinding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I regrind?
shouldn't you regrind?
shouldn't he regrind?
shouldn't we regrind?
shouldn't you regrind?
shouldn't they regrind? 	shouldn't I be regrinding?
shouldn't you be regrinding?
shouldn't he be regrinding?
shouldn't we be regrinding?
shouldn't you be regrinding?
shouldn't they be regrinding? 	shouldn't I have reground?
shouldn't you have reground?
shouldn't he have reground?
shouldn't we have reground?
shouldn't you have reground?
shouldn't they have reground? 	shouldn't I have been regrinding?
shouldn't you have been regrinding?
shouldn't he have been regrinding?
shouldn't we have been regrinding?
shouldn't you have been regrinding?
shouldn't they have been regrinding?