ought to endorse
Regular verb: endorse - endorsed- endorsed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to endorse
you ought to endorse
he ought to endorse
we ought to endorse
you ought to endorse
they ought to endorse 	I ought to be endorsing
you ought to be endorsing
he ought to be endorsing
we ought to be endorsing
you ought to be endorsing
they ought to be endorsing	I ought to have endorsed
you ought to have endorsed
he ought to have endorsed
we ought to have endorsed
you ought to have endorsed
they ought to have endorsed	I ought to have been endorsing
you ought to have been endorsing
he ought to have been endorsing
we ought to have been endorsing
you ought to have been endorsing
they ought to have been endorsing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to endorse
you oughtn't to endorse
he oughtn't to endorse
we oughtn't to endorse
you oughtn't to endorse
they oughtn't to endorse 	I oughtn't to be endorsing
you oughtn't to be endorsing
he oughtn't to be endorsing
we oughtn't to be endorsing
you oughtn't to be endorsing
they oughtn't to be endorsing	I oughtn't to have endorsed
you oughtn't to have endorsed
he oughtn't to have endorsed
we oughtn't to have endorsed
you oughtn't to have endorsed
they oughtn't to have endorsed	I oughtn't to have been endorsing
you oughtn't to have been endorsing
he oughtn't to have been endorsing
we oughtn't to have been endorsing
you oughtn't to have been endorsing
they oughtn't to have been endorsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I endorse?
ought to you endorse?
ought to he endorse?
ought to we endorse?
ought to you endorse?
ought to they endorse? 	ought to I be endorsing?
ought to you be endorsing?
ought to he be endorsing?
ought to we be endorsing?
ought to you be endorsing?
ought to they be endorsing? 	ought to I have endorsed?
ought to you have endorsed?
ought to he have endorsed?
ought to we have endorsed?
ought to you have endorsed?
ought to they have endorsed? 	ought to I have been endorsing?
ought to you have been endorsing?
ought to he have been endorsing?
ought to we have been endorsing?
ought to you have been endorsing?
ought to they have been endorsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to endorse?
oughtn't you to endorse?
oughtn't he to endorse?
oughtn't we to endorse?
oughtn't you to endorse?
oughtn't they to endorse? 	oughtn't I to be endorsing?
oughtn't you to be endorsing?
oughtn't he to be endorsing?
oughtn't we to be endorsing?
oughtn't you to be endorsing?
oughtn't they to be endorsing? 	oughtn't I to have endorsed?
oughtn't you to have endorsed?
oughtn't he to have endorsed?
oughtn't we to have endorsed?
oughtn't you to have endorsed?
oughtn't they to have endorsed? 	oughtn't I to have been endorsing?
oughtn't you to have been endorsing?
oughtn't he to have been endorsing?
oughtn't we to have been endorsing?
oughtn't you to have been endorsing?
oughtn't they to have been endorsing?