ought to slipper
Regular verb: slipper - slippered- slippered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to slipper
you ought to slipper
he ought to slipper
we ought to slipper
you ought to slipper
they ought to slipper 	I ought to be slippering
you ought to be slippering
he ought to be slippering
we ought to be slippering
you ought to be slippering
they ought to be slippering	I ought to have slippered
you ought to have slippered
he ought to have slippered
we ought to have slippered
you ought to have slippered
they ought to have slippered	I ought to have been slippering
you ought to have been slippering
he ought to have been slippering
we ought to have been slippering
you ought to have been slippering
they ought to have been slippering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to slipper
you oughtn't to slipper
he oughtn't to slipper
we oughtn't to slipper
you oughtn't to slipper
they oughtn't to slipper 	I oughtn't to be slippering
you oughtn't to be slippering
he oughtn't to be slippering
we oughtn't to be slippering
you oughtn't to be slippering
they oughtn't to be slippering	I oughtn't to have slippered
you oughtn't to have slippered
he oughtn't to have slippered
we oughtn't to have slippered
you oughtn't to have slippered
they oughtn't to have slippered	I oughtn't to have been slippering
you oughtn't to have been slippering
he oughtn't to have been slippering
we oughtn't to have been slippering
you oughtn't to have been slippering
they oughtn't to have been slippering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I slipper?
ought to you slipper?
ought to he slipper?
ought to we slipper?
ought to you slipper?
ought to they slipper? 	ought to I be slippering?
ought to you be slippering?
ought to he be slippering?
ought to we be slippering?
ought to you be slippering?
ought to they be slippering? 	ought to I have slippered?
ought to you have slippered?
ought to he have slippered?
ought to we have slippered?
ought to you have slippered?
ought to they have slippered? 	ought to I have been slippering?
ought to you have been slippering?
ought to he have been slippering?
ought to we have been slippering?
ought to you have been slippering?
ought to they have been slippering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to slipper?
oughtn't you to slipper?
oughtn't he to slipper?
oughtn't we to slipper?
oughtn't you to slipper?
oughtn't they to slipper? 	oughtn't I to be slippering?
oughtn't you to be slippering?
oughtn't he to be slippering?
oughtn't we to be slippering?
oughtn't you to be slippering?
oughtn't they to be slippering? 	oughtn't I to have slippered?
oughtn't you to have slippered?
oughtn't he to have slippered?
oughtn't we to have slippered?
oughtn't you to have slippered?
oughtn't they to have slippered? 	oughtn't I to have been slippering?
oughtn't you to have been slippering?
oughtn't he to have been slippering?
oughtn't we to have been slippering?
oughtn't you to have been slippering?
oughtn't they to have been slippering?