ought to accumulate
Regular verb: accumulate - accumulated- accumulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to accumulate
you ought to accumulate
he ought to accumulate
we ought to accumulate
you ought to accumulate
they ought to accumulate 	I ought to be accumulating
you ought to be accumulating
he ought to be accumulating
we ought to be accumulating
you ought to be accumulating
they ought to be accumulating	I ought to have accumulated
you ought to have accumulated
he ought to have accumulated
we ought to have accumulated
you ought to have accumulated
they ought to have accumulated	I ought to have been accumulating
you ought to have been accumulating
he ought to have been accumulating
we ought to have been accumulating
you ought to have been accumulating
they ought to have been accumulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to accumulate
you ought not to accumulate
he ought not to accumulate
we ought not to accumulate
you ought not to accumulate
they ought not to accumulate 	I ought not to accumulating
you ought not to accumulating
he ought not to accumulating
we ought not to accumulating
you ought not to accumulating
they ought not to accumulating	I ought not to have accumulated
you ought not to have accumulated
he ought not to have accumulated
we ought not to have accumulated
you ought not to have accumulated
they ought not to have accumulated	I ought not to have been accumulating
you ought not to have been accumulating
he ought not to have been accumulating
we ought not to have been accumulating
you ought not to have been accumulating
they ought not to have been accumulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I accumulate?
ought to you accumulate?
ought to he accumulate?
ought to we accumulate?
ought to you accumulate?
ought to they accumulate? 	ought to I be accumulating?
ought to you be accumulating?
ought to he be accumulating?
ought to we be accumulating?
ought to you be accumulating?
ought to they be accumulating? 	ought to I have accumulated?
ought to you have accumulated?
ought to he have accumulated?
ought to we have accumulated?
ought to you have accumulated?
ought to they have accumulated? 	ought to I have been accumulating?
ought to you have been accumulating?
ought to he have been accumulating?
ought to we have been accumulating?
ought to you have been accumulating?
ought to they have been accumulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to accumulate?
ought you not to accumulate?
ought he not to accumulate?
ought we not to accumulate?
ought you not to accumulate?
ought they not to accumulate? 	ought I not to be accumulating?
ought you not to be accumulating?
ought he not to be accumulating?
ought we not to be accumulating?
ought you not to be accumulating?
ought they not to be accumulating? 	ought I not to have accumulated?
ought you not to have accumulated?
ought he not to have accumulated?
ought we not to have accumulated?
ought you not to have accumulated?
ought they not to have accumulated? 	ought I not to have been accumulating?
ought you not to have been accumulating?
ought he not to have been accumulating?
ought we not to have been accumulating?
ought you not to have been accumulating?
ought they not to have been accumulating?