should iterate
Regular verb: iterate - iterated- iterated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd iterate
you'd iterate
she'd iterate
we'd iterate
you'd iterate
they'd iterate 	I'd be iterating
you'd be iterating
she'd be iterating
we'd be iterating
you'd be iterating
they'd be iterating	I should've iterated
you should've iterated
she should've iterated
we should've iterated
you should've iterated
they should've iterated	I should've been iterating
you should've been iterating
she should've been iterating
we should've been iterating
you should've been iterating
they should've been iterating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't iterate
you shouldn't iterate
she shouldn't iterate
we shouldn't iterate
you shouldn't iterate
they shouldn't iterate 	I shouldn't be iterating
you shouldn't be iterating
she shouldn't be iterating
we shouldn't be iterating
you shouldn't be iterating
they shouldn't be iterating	I shouldn't have iterated
you shouldn't have iterated
she shouldn't have iterated
we shouldn't have iterated
you shouldn't have iterated
they shouldn't have iterated	I shouldn't have been iterating
you shouldn't have been iterating
she shouldn't have been iterating
we shouldn't have been iterating
you shouldn't have been iterating
they shouldn't have been iterating	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I iterate?
shouldn't you iterate?
shouldn't she iterate?
shouldn't we iterate?
shouldn't you iterate?
shouldn't they iterate? 	shouldn't I be iterating?
shouldn't you be iterating?
shouldn't she be iterating?
shouldn't we be iterating?
shouldn't you be iterating?
shouldn't they be iterating? 	shouldn't I have iterated?
shouldn't you have iterated?
shouldn't she have iterated?
shouldn't we have iterated?
shouldn't you have iterated?
shouldn't they have iterated? 	shouldn't I have been iterating?
shouldn't you have been iterating?
shouldn't she have been iterating?
shouldn't we have been iterating?
shouldn't you have been iterating?
shouldn't they have been iterating?