ought to slack
Regular verb: slack - slacked- slacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to slack
you ought to slack
he ought to slack
we ought to slack
you ought to slack
they ought to slack 	I ought to be slacking
you ought to be slacking
he ought to be slacking
we ought to be slacking
you ought to be slacking
they ought to be slacking	I ought to have slacked
you ought to have slacked
he ought to have slacked
we ought to have slacked
you ought to have slacked
they ought to have slacked	I ought to have been slacking
you ought to have been slacking
he ought to have been slacking
we ought to have been slacking
you ought to have been slacking
they ought to have been slacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to slack
you oughtn't to slack
he oughtn't to slack
we oughtn't to slack
you oughtn't to slack
they oughtn't to slack 	I oughtn't to be slacking
you oughtn't to be slacking
he oughtn't to be slacking
we oughtn't to be slacking
you oughtn't to be slacking
they oughtn't to be slacking	I oughtn't to have slacked
you oughtn't to have slacked
he oughtn't to have slacked
we oughtn't to have slacked
you oughtn't to have slacked
they oughtn't to have slacked	I oughtn't to have been slacking
you oughtn't to have been slacking
he oughtn't to have been slacking
we oughtn't to have been slacking
you oughtn't to have been slacking
they oughtn't to have been slacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I slack?
ought to you slack?
ought to he slack?
ought to we slack?
ought to you slack?
ought to they slack? 	ought to I be slacking?
ought to you be slacking?
ought to he be slacking?
ought to we be slacking?
ought to you be slacking?
ought to they be slacking? 	ought to I have slacked?
ought to you have slacked?
ought to he have slacked?
ought to we have slacked?
ought to you have slacked?
ought to they have slacked? 	ought to I have been slacking?
ought to you have been slacking?
ought to he have been slacking?
ought to we have been slacking?
ought to you have been slacking?
ought to they have been slacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to slack?
oughtn't you to slack?
oughtn't he to slack?
oughtn't we to slack?
oughtn't you to slack?
oughtn't they to slack? 	oughtn't I to be slacking?
oughtn't you to be slacking?
oughtn't he to be slacking?
oughtn't we to be slacking?
oughtn't you to be slacking?
oughtn't they to be slacking? 	oughtn't I to have slacked?
oughtn't you to have slacked?
oughtn't he to have slacked?
oughtn't we to have slacked?
oughtn't you to have slacked?
oughtn't they to have slacked? 	oughtn't I to have been slacking?
oughtn't you to have been slacking?
oughtn't he to have been slacking?
oughtn't we to have been slacking?
oughtn't you to have been slacking?
oughtn't they to have been slacking?