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 oughtn't to accumulate
you oughtn't to accumulate
he oughtn't to accumulate
we oughtn't to accumulate
you oughtn't to accumulate
they oughtn't to accumulate 	I oughtn't to be accumulating
you oughtn't to be accumulating
he oughtn't to be accumulating
we oughtn't to be accumulating
you oughtn't to be accumulating
they oughtn't to be accumulating	I oughtn't to have accumulated
you oughtn't to have accumulated
he oughtn't to have accumulated
we oughtn't to have accumulated
you oughtn't to have accumulated
they oughtn't to have accumulated	I oughtn't to have been accumulating
you oughtn't to have been accumulating
he oughtn't to have been accumulating
we oughtn't to have been accumulating
you oughtn't to have been accumulating
they oughtn't 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 	
oughtn't I to accumulate?
oughtn't you to accumulate?
oughtn't he to accumulate?
oughtn't we to accumulate?
oughtn't you to accumulate?
oughtn't they to accumulate? 	oughtn't I to be accumulating?
oughtn't you to be accumulating?
oughtn't he to be accumulating?
oughtn't we to be accumulating?
oughtn't you to be accumulating?
oughtn't they to be accumulating? 	oughtn't I to have accumulated?
oughtn't you to have accumulated?
oughtn't he to have accumulated?
oughtn't we to have accumulated?
oughtn't you to have accumulated?
oughtn't they to have accumulated? 	oughtn't I to have been accumulating?
oughtn't you to have been accumulating?
oughtn't he to have been accumulating?
oughtn't we to have been accumulating?
oughtn't you to have been accumulating?
oughtn't they to have been accumulating?