ought to patent
Regular verb: patent - patented- patented

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to patent
you ought to patent
he ought to patent
we ought to patent
you ought to patent
they ought to patent 	I ought to be patenting
you ought to be patenting
he ought to be patenting
we ought to be patenting
you ought to be patenting
they ought to be patenting	I ought to have patented
you ought to have patented
he ought to have patented
we ought to have patented
you ought to have patented
they ought to have patented	I ought to have been patenting
you ought to have been patenting
he ought to have been patenting
we ought to have been patenting
you ought to have been patenting
they ought to have been patenting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to patent
you oughtn't to patent
he oughtn't to patent
we oughtn't to patent
you oughtn't to patent
they oughtn't to patent 	I oughtn't to be patenting
you oughtn't to be patenting
he oughtn't to be patenting
we oughtn't to be patenting
you oughtn't to be patenting
they oughtn't to be patenting	I oughtn't to have patented
you oughtn't to have patented
he oughtn't to have patented
we oughtn't to have patented
you oughtn't to have patented
they oughtn't to have patented	I oughtn't to have been patenting
you oughtn't to have been patenting
he oughtn't to have been patenting
we oughtn't to have been patenting
you oughtn't to have been patenting
they oughtn't to have been patenting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I patent?
ought to you patent?
ought to he patent?
ought to we patent?
ought to you patent?
ought to they patent? 	ought to I be patenting?
ought to you be patenting?
ought to he be patenting?
ought to we be patenting?
ought to you be patenting?
ought to they be patenting? 	ought to I have patented?
ought to you have patented?
ought to he have patented?
ought to we have patented?
ought to you have patented?
ought to they have patented? 	ought to I have been patenting?
ought to you have been patenting?
ought to he have been patenting?
ought to we have been patenting?
ought to you have been patenting?
ought to they have been patenting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to patent?
oughtn't you to patent?
oughtn't he to patent?
oughtn't we to patent?
oughtn't you to patent?
oughtn't they to patent? 	oughtn't I to be patenting?
oughtn't you to be patenting?
oughtn't he to be patenting?
oughtn't we to be patenting?
oughtn't you to be patenting?
oughtn't they to be patenting? 	oughtn't I to have patented?
oughtn't you to have patented?
oughtn't he to have patented?
oughtn't we to have patented?
oughtn't you to have patented?
oughtn't they to have patented? 	oughtn't I to have been patenting?
oughtn't you to have been patenting?
oughtn't he to have been patenting?
oughtn't we to have been patenting?
oughtn't you to have been patenting?
oughtn't they to have been patenting?