ought to cumulate
Regular verb: cumulate - cumulated- cumulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to cumulate
you ought to cumulate
he ought to cumulate
we ought to cumulate
you ought to cumulate
they ought to cumulate 	I ought to be cumulating
you ought to be cumulating
he ought to be cumulating
we ought to be cumulating
you ought to be cumulating
they ought to be cumulating	I ought to have cumulated
you ought to have cumulated
he ought to have cumulated
we ought to have cumulated
you ought to have cumulated
they ought to have cumulated	I ought to have been cumulating
you ought to have been cumulating
he ought to have been cumulating
we ought to have been cumulating
you ought to have been cumulating
they ought to have been cumulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to cumulate
you ought not to cumulate
he ought not to cumulate
we ought not to cumulate
you ought not to cumulate
they ought not to cumulate 	I ought not to cumulating
you ought not to cumulating
he ought not to cumulating
we ought not to cumulating
you ought not to cumulating
they ought not to cumulating	I ought not to have cumulated
you ought not to have cumulated
he ought not to have cumulated
we ought not to have cumulated
you ought not to have cumulated
they ought not to have cumulated	I ought not to have been cumulating
you ought not to have been cumulating
he ought not to have been cumulating
we ought not to have been cumulating
you ought not to have been cumulating
they ought not to have been cumulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I cumulate?
ought to you cumulate?
ought to he cumulate?
ought to we cumulate?
ought to you cumulate?
ought to they cumulate? 	ought to I be cumulating?
ought to you be cumulating?
ought to he be cumulating?
ought to we be cumulating?
ought to you be cumulating?
ought to they be cumulating? 	ought to I have cumulated?
ought to you have cumulated?
ought to he have cumulated?
ought to we have cumulated?
ought to you have cumulated?
ought to they have cumulated? 	ought to I have been cumulating?
ought to you have been cumulating?
ought to he have been cumulating?
ought to we have been cumulating?
ought to you have been cumulating?
ought to they have been cumulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to cumulate?
ought you not to cumulate?
ought he not to cumulate?
ought we not to cumulate?
ought you not to cumulate?
ought they not to cumulate? 	ought I not to be cumulating?
ought you not to be cumulating?
ought he not to be cumulating?
ought we not to be cumulating?
ought you not to be cumulating?
ought they not to be cumulating? 	ought I not to have cumulated?
ought you not to have cumulated?
ought he not to have cumulated?
ought we not to have cumulated?
ought you not to have cumulated?
ought they not to have cumulated? 	ought I not to have been cumulating?
ought you not to have been cumulating?
ought he not to have been cumulating?
ought we not to have been cumulating?
ought you not to have been cumulating?
ought they not to have been cumulating?