ought to shred
Regular verb: shred - shredded- shredded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to shred
you ought to shred
she ought to shred
we ought to shred
you ought to shred
they ought to shred 	I ought to be shredding
you ought to be shredding
she ought to be shredding
we ought to be shredding
you ought to be shredding
they ought to be shredding	I ought to have shredded
you ought to have shredded
she ought to have shredded
we ought to have shredded
you ought to have shredded
they ought to have shredded	I ought to have been shredding
you ought to have been shredding
she ought to have been shredding
we ought to have been shredding
you ought to have been shredding
they ought to have been shredding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to shred
you oughtn't to shred
she oughtn't to shred
we oughtn't to shred
you oughtn't to shred
they oughtn't to shred 	I oughtn't to be shredding
you oughtn't to be shredding
she oughtn't to be shredding
we oughtn't to be shredding
you oughtn't to be shredding
they oughtn't to be shredding	I oughtn't to have shredded
you oughtn't to have shredded
she oughtn't to have shredded
we oughtn't to have shredded
you oughtn't to have shredded
they oughtn't to have shredded	I oughtn't to have been shredding
you oughtn't to have been shredding
she oughtn't to have been shredding
we oughtn't to have been shredding
you oughtn't to have been shredding
they oughtn't to have been shredding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I shred?
ought to you shred?
ought to she shred?
ought to we shred?
ought to you shred?
ought to they shred? 	ought to I be shredding?
ought to you be shredding?
ought to she be shredding?
ought to we be shredding?
ought to you be shredding?
ought to they be shredding? 	ought to I have shredded?
ought to you have shredded?
ought to she have shredded?
ought to we have shredded?
ought to you have shredded?
ought to they have shredded? 	ought to I have been shredding?
ought to you have been shredding?
ought to she have been shredding?
ought to we have been shredding?
ought to you have been shredding?
ought to they have been shredding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to shred?
oughtn't you to shred?
oughtn't she to shred?
oughtn't we to shred?
oughtn't you to shred?
oughtn't they to shred? 	oughtn't I to be shredding?
oughtn't you to be shredding?
oughtn't she to be shredding?
oughtn't we to be shredding?
oughtn't you to be shredding?
oughtn't they to be shredding? 	oughtn't I to have shredded?
oughtn't you to have shredded?
oughtn't she to have shredded?
oughtn't we to have shredded?
oughtn't you to have shredded?
oughtn't they to have shredded? 	oughtn't I to have been shredding?
oughtn't you to have been shredding?
oughtn't she to have been shredding?
oughtn't we to have been shredding?
oughtn't you to have been shredding?
oughtn't they to have been shredding?