should preapprove
Regular verb: preapprove - preapproved- preapproved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd preapprove
you'd preapprove
he'd preapprove
we'd preapprove
you'd preapprove
they'd preapprove 	I'd be preapproving
you'd be preapproving
he'd be preapproving
we'd be preapproving
you'd be preapproving
they'd be preapproving	I should've preapproved
you should've preapproved
he should've preapproved
we should've preapproved
you should've preapproved
they should've preapproved	I should've been preapproving
you should've been preapproving
he should've been preapproving
we should've been preapproving
you should've been preapproving
they should've been preapproving	

Negation 	
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I shouldn't preapprove
you shouldn't preapprove
he shouldn't preapprove
we shouldn't preapprove
you shouldn't preapprove
they shouldn't preapprove 	I shouldn't be preapproving
you shouldn't be preapproving
he shouldn't be preapproving
we shouldn't be preapproving
you shouldn't be preapproving
they shouldn't be preapproving	I shouldn't have preapproved
you shouldn't have preapproved
he shouldn't have preapproved
we shouldn't have preapproved
you shouldn't have preapproved
they shouldn't have preapproved	I shouldn't have been preapproving
you shouldn't have been preapproving
he shouldn't have been preapproving
we shouldn't have been preapproving
you shouldn't have been preapproving
they shouldn't have been preapproving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I preapprove?
should you preapprove?
should he preapprove?
should we preapprove?
should you preapprove?
should they preapprove? 	should I be preapproving?
should you be preapproving?
should he be preapproving?
should we be preapproving?
should you be preapproving?
should they be preapproving? 	should I have preapproved?
should you have preapproved?
should he have preapproved?
should we have preapproved?
should you have preapproved?
should they have preapproved? 	should I have been preapproving?
should you have been preapproving?
should he have been preapproving?
should we have been preapproving?
should you have been preapproving?
should they have been preapproving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I preapprove?
shouldn't you preapprove?
shouldn't he preapprove?
shouldn't we preapprove?
shouldn't you preapprove?
shouldn't they preapprove? 	shouldn't I be preapproving?
shouldn't you be preapproving?
shouldn't he be preapproving?
shouldn't we be preapproving?
shouldn't you be preapproving?
shouldn't they be preapproving? 	shouldn't I have preapproved?
shouldn't you have preapproved?
shouldn't he have preapproved?
shouldn't we have preapproved?
shouldn't you have preapproved?
shouldn't they have preapproved? 	shouldn't I have been preapproving?
shouldn't you have been preapproving?
shouldn't he have been preapproving?
shouldn't we have been preapproving?
shouldn't you have been preapproving?
shouldn't they have been preapproving?