ought to furnish
Regular verb: furnish - furnished- furnished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to furnish
you ought to furnish
he ought to furnish
we ought to furnish
you ought to furnish
they ought to furnish 	I ought to be furnishing
you ought to be furnishing
he ought to be furnishing
we ought to be furnishing
you ought to be furnishing
they ought to be furnishing	I ought to have furnished
you ought to have furnished
he ought to have furnished
we ought to have furnished
you ought to have furnished
they ought to have furnished	I ought to have been furnishing
you ought to have been furnishing
he ought to have been furnishing
we ought to have been furnishing
you ought to have been furnishing
they ought to have been furnishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to furnish
you oughtn't to furnish
he oughtn't to furnish
we oughtn't to furnish
you oughtn't to furnish
they oughtn't to furnish 	I oughtn't to be furnishing
you oughtn't to be furnishing
he oughtn't to be furnishing
we oughtn't to be furnishing
you oughtn't to be furnishing
they oughtn't to be furnishing	I oughtn't to have furnished
you oughtn't to have furnished
he oughtn't to have furnished
we oughtn't to have furnished
you oughtn't to have furnished
they oughtn't to have furnished	I oughtn't to have been furnishing
you oughtn't to have been furnishing
he oughtn't to have been furnishing
we oughtn't to have been furnishing
you oughtn't to have been furnishing
they oughtn't to have been furnishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I furnish?
ought to you furnish?
ought to he furnish?
ought to we furnish?
ought to you furnish?
ought to they furnish? 	ought to I be furnishing?
ought to you be furnishing?
ought to he be furnishing?
ought to we be furnishing?
ought to you be furnishing?
ought to they be furnishing? 	ought to I have furnished?
ought to you have furnished?
ought to he have furnished?
ought to we have furnished?
ought to you have furnished?
ought to they have furnished? 	ought to I have been furnishing?
ought to you have been furnishing?
ought to he have been furnishing?
ought to we have been furnishing?
ought to you have been furnishing?
ought to they have been furnishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to furnish?
oughtn't you to furnish?
oughtn't he to furnish?
oughtn't we to furnish?
oughtn't you to furnish?
oughtn't they to furnish? 	oughtn't I to be furnishing?
oughtn't you to be furnishing?
oughtn't he to be furnishing?
oughtn't we to be furnishing?
oughtn't you to be furnishing?
oughtn't they to be furnishing? 	oughtn't I to have furnished?
oughtn't you to have furnished?
oughtn't he to have furnished?
oughtn't we to have furnished?
oughtn't you to have furnished?
oughtn't they to have furnished? 	oughtn't I to have been furnishing?
oughtn't you to have been furnishing?
oughtn't he to have been furnishing?
oughtn't we to have been furnishing?
oughtn't you to have been furnishing?
oughtn't they to have been furnishing?