ought to research
Regular verb: research - researched- researched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to research
you ought to research
he ought to research
we ought to research
you ought to research
they ought to research 	I ought to be researching
you ought to be researching
he ought to be researching
we ought to be researching
you ought to be researching
they ought to be researching	I ought to have researched
you ought to have researched
he ought to have researched
we ought to have researched
you ought to have researched
they ought to have researched	I ought to have been researching
you ought to have been researching
he ought to have been researching
we ought to have been researching
you ought to have been researching
they ought to have been researching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to research
you oughtn't to research
he oughtn't to research
we oughtn't to research
you oughtn't to research
they oughtn't to research 	I oughtn't to be researching
you oughtn't to be researching
he oughtn't to be researching
we oughtn't to be researching
you oughtn't to be researching
they oughtn't to be researching	I oughtn't to have researched
you oughtn't to have researched
he oughtn't to have researched
we oughtn't to have researched
you oughtn't to have researched
they oughtn't to have researched	I oughtn't to have been researching
you oughtn't to have been researching
he oughtn't to have been researching
we oughtn't to have been researching
you oughtn't to have been researching
they oughtn't to have been researching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I research?
ought to you research?
ought to he research?
ought to we research?
ought to you research?
ought to they research? 	ought to I be researching?
ought to you be researching?
ought to he be researching?
ought to we be researching?
ought to you be researching?
ought to they be researching? 	ought to I have researched?
ought to you have researched?
ought to he have researched?
ought to we have researched?
ought to you have researched?
ought to they have researched? 	ought to I have been researching?
ought to you have been researching?
ought to he have been researching?
ought to we have been researching?
ought to you have been researching?
ought to they have been researching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to research?
oughtn't you to research?
oughtn't he to research?
oughtn't we to research?
oughtn't you to research?
oughtn't they to research? 	oughtn't I to be researching?
oughtn't you to be researching?
oughtn't he to be researching?
oughtn't we to be researching?
oughtn't you to be researching?
oughtn't they to be researching? 	oughtn't I to have researched?
oughtn't you to have researched?
oughtn't he to have researched?
oughtn't we to have researched?
oughtn't you to have researched?
oughtn't they to have researched? 	oughtn't I to have been researching?
oughtn't you to have been researching?
oughtn't he to have been researching?
oughtn't we to have been researching?
oughtn't you to have been researching?
oughtn't they to have been researching?