ought to regrind
Irregular verb: regrind - reground- reground

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to regrind
you ought to regrind
he ought to regrind
we ought to regrind
you ought to regrind
they ought to regrind 	I ought to be regrinding
you ought to be regrinding
he ought to be regrinding
we ought to be regrinding
you ought to be regrinding
they ought to be regrinding	I ought to have reground
you ought to have reground
he ought to have reground
we ought to have reground
you ought to have reground
they ought to have reground	I ought to have been regrinding
you ought to have been regrinding
he ought to have been regrinding
we ought to have been regrinding
you ought to have been regrinding
they ought to have been regrinding	

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

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

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