ought to enlighten
Regular verb: enlighten - enlightened- enlightened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to enlighten
you ought to enlighten
he ought to enlighten
we ought to enlighten
you ought to enlighten
they ought to enlighten 	I ought to be enlightening
you ought to be enlightening
he ought to be enlightening
we ought to be enlightening
you ought to be enlightening
they ought to be enlightening	I ought to have enlightened
you ought to have enlightened
he ought to have enlightened
we ought to have enlightened
you ought to have enlightened
they ought to have enlightened	I ought to have been enlightening
you ought to have been enlightening
he ought to have been enlightening
we ought to have been enlightening
you ought to have been enlightening
they ought to have been enlightening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to enlighten
you ought not to enlighten
he ought not to enlighten
we ought not to enlighten
you ought not to enlighten
they ought not to enlighten 	I ought not to enlightening
you ought not to enlightening
he ought not to enlightening
we ought not to enlightening
you ought not to enlightening
they ought not to enlightening	I ought not to have enlightened
you ought not to have enlightened
he ought not to have enlightened
we ought not to have enlightened
you ought not to have enlightened
they ought not to have enlightened	I ought not to have been enlightening
you ought not to have been enlightening
he ought not to have been enlightening
we ought not to have been enlightening
you ought not to have been enlightening
they ought not to have been enlightening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I enlighten?
ought to you enlighten?
ought to he enlighten?
ought to we enlighten?
ought to you enlighten?
ought to they enlighten? 	ought to I be enlightening?
ought to you be enlightening?
ought to he be enlightening?
ought to we be enlightening?
ought to you be enlightening?
ought to they be enlightening? 	ought to I have enlightened?
ought to you have enlightened?
ought to he have enlightened?
ought to we have enlightened?
ought to you have enlightened?
ought to they have enlightened? 	ought to I have been enlightening?
ought to you have been enlightening?
ought to he have been enlightening?
ought to we have been enlightening?
ought to you have been enlightening?
ought to they have been enlightening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to enlighten?
ought you not to enlighten?
ought he not to enlighten?
ought we not to enlighten?
ought you not to enlighten?
ought they not to enlighten? 	ought I not to be enlightening?
ought you not to be enlightening?
ought he not to be enlightening?
ought we not to be enlightening?
ought you not to be enlightening?
ought they not to be enlightening? 	ought I not to have enlightened?
ought you not to have enlightened?
ought he not to have enlightened?
ought we not to have enlightened?
ought you not to have enlightened?
ought they not to have enlightened? 	ought I not to have been enlightening?
ought you not to have been enlightening?
ought he not to have been enlightening?
ought we not to have been enlightening?
ought you not to have been enlightening?
ought they not to have been enlightening?