can accumulate
Regular verb: accumulate - accumulated- accumulated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can accumulate
you can accumulate
she can accumulate
we can accumulate
you can accumulate
they can accumulate 	I can be accumulating
you can be accumulating
she can be accumulating
we can be accumulating
you can be accumulating
they can be accumulating	I can have accumulated
you can have accumulated
she can have accumulated
we can have accumulated
you can have accumulated
they can have accumulated	I can have been accumulating
you can have been accumulating
she can have been accumulating
we can have been accumulating
you can have been accumulating
they can have been accumulating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't accumulate
you can't accumulate
she can't accumulate
we can't accumulate
you can't accumulate
they can't accumulate 	I can't be accumulating
you can't be accumulating
she can't be accumulating
we can't be accumulating
you can't be accumulating
they can't be accumulating	I can't have accumulated
you can't have accumulated
she can't have accumulated
we can't have accumulated
you can't have accumulated
they can't have accumulated	I can't have been accumulating
you can't have been accumulating
she can't have been accumulating
we can't have been accumulating
you can't have been accumulating
they can't have been accumulating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I accumulate?
can you accumulate?
can she accumulate?
can we accumulate?
can you accumulate?
can they accumulate? 	can I be accumulating?
can you be accumulating?
can she be accumulating?
can we be accumulating?
can you be accumulating?
can they be accumulating? 	can I have accumulated?
can you have accumulated?
can she have accumulated?
can we have accumulated?
can you have accumulated?
can they have accumulated? 	can I have been accumulating?
can you have been accumulating?
can she have been accumulating?
can we have been accumulating?
can you have been accumulating?
can they have been accumulating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I accumulate?
can't you accumulate?
can't she accumulate?
can't we accumulate?
can't you accumulate?
can't they accumulate? 	can't I be accumulating?
can't you be accumulating?
can't she be accumulating?
can't we be accumulating?
can't you be accumulating?
can't they be accumulating? 	can't I have accumulated?
can't you have accumulated?
can't she have accumulated?
can't we have accumulated?
can't you have accumulated?
can't they have accumulated? 	can't I have been accumulating?
can't you have been accumulating?
can't she have been accumulating?
can't we have been accumulating?
can't you have been accumulating?
can't they have been accumulating?