can iterate
Regular verb: iterate - iterated- iterated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can iterate
you can iterate
he can iterate
we can iterate
you can iterate
they can iterate 	I can be iterating
you can be iterating
he can be iterating
we can be iterating
you can be iterating
they can be iterating	I can have iterated
you can have iterated
he can have iterated
we can have iterated
you can have iterated
they can have iterated	I can have been iterating
you can have been iterating
he can have been iterating
we can have been iterating
you can have been iterating
they can have been iterating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot iterate
you cannot iterate
he cannot iterate
we cannot iterate
you cannot iterate
they cannot iterate 	I cannot be iterating
you cannot be iterating
he cannot be iterating
we cannot be iterating
you cannot be iterating
they cannot be iterating	I cannot have iterated
you cannot have iterated
he cannot have iterated
we cannot have iterated
you cannot have iterated
they cannot have iterated	I cannot have been iterating
you cannot have been iterating
he cannot have been iterating
we cannot have been iterating
you cannot have been iterating
they cannot have been iterating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I iterate?
can you iterate?
can he iterate?
can we iterate?
can you iterate?
can they iterate? 	can I be iterating?
can you be iterating?
can he be iterating?
can we be iterating?
can you be iterating?
can they be iterating? 	can I have iterated?
can you have iterated?
can he have iterated?
can we have iterated?
can you have iterated?
can they have iterated? 	can I have been iterating?
can you have been iterating?
can he have been iterating?
can we have been iterating?
can you have been iterating?
can they have been iterating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not iterate?
can you not iterate?
can he not iterate?
can we not iterate?
can you not iterate?
can they not iterate? 	can I not be iterating?
can you not be iterating?
can he not be iterating?
can we not be iterating?
can you not be iterating?
can they not be iterating? 	can I not have iterated?
can you not have iterated?
can he not have iterated?
can we not have iterated?
can you not have iterated?
can they not have iterated? 	can I not have been iterating?
can you not have been iterating?
can he not have been iterating?
can we not have been iterating?
can you not have been iterating?
can they not have been iterating?