ought to research
Verbo regular: research - researched- researched

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I ought not to research
you ought not to research
he ought not to research
we ought not to research
you ought not to research
they ought not to research 	I ought not to researching
you ought not to researching
he ought not to researching
we ought not to researching
you ought not to researching
they ought not to researching	I ought not to have researched
you ought not to have researched
he ought not to have researched
we ought not to have researched
you ought not to have researched
they ought not to have researched	I ought not to have been researching
you ought not to have been researching
he ought not to have been researching
we ought not to have been researching
you ought not to have been researching
they ought not to have been researching	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
ought I not to research?
ought you not to research?
ought he not to research?
ought we not to research?
ought you not to research?
ought they not to research? 	ought I not to be researching?
ought you not to be researching?
ought he not to be researching?
ought we not to be researching?
ought you not to be researching?
ought they not to be researching? 	ought I not to have researched?
ought you not to have researched?
ought he not to have researched?
ought we not to have researched?
ought you not to have researched?
ought they not to have researched? 	ought I not to have been researching?
ought you not to have been researching?
ought he not to have been researching?
ought we not to have been researching?
ought you not to have been researching?
ought they not to have been researching?