should preinform
Regular verb: preinform - preinformed- preinformed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd preinform
you'd preinform
he'd preinform
we'd preinform
you'd preinform
they'd preinform 	I'd be preinforming
you'd be preinforming
he'd be preinforming
we'd be preinforming
you'd be preinforming
they'd be preinforming	I should've preinformed
you should've preinformed
he should've preinformed
we should've preinformed
you should've preinformed
they should've preinformed	I should've been preinforming
you should've been preinforming
he should've been preinforming
we should've been preinforming
you should've been preinforming
they should've been preinforming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't preinform
you shouldn't preinform
he shouldn't preinform
we shouldn't preinform
you shouldn't preinform
they shouldn't preinform 	I shouldn't be preinforming
you shouldn't be preinforming
he shouldn't be preinforming
we shouldn't be preinforming
you shouldn't be preinforming
they shouldn't be preinforming	I shouldn't have preinformed
you shouldn't have preinformed
he shouldn't have preinformed
we shouldn't have preinformed
you shouldn't have preinformed
they shouldn't have preinformed	I shouldn't have been preinforming
you shouldn't have been preinforming
he shouldn't have been preinforming
we shouldn't have been preinforming
you shouldn't have been preinforming
they shouldn't have been preinforming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I preinform?
should you preinform?
should he preinform?
should we preinform?
should you preinform?
should they preinform? 	should I be preinforming?
should you be preinforming?
should he be preinforming?
should we be preinforming?
should you be preinforming?
should they be preinforming? 	should I have preinformed?
should you have preinformed?
should he have preinformed?
should we have preinformed?
should you have preinformed?
should they have preinformed? 	should I have been preinforming?
should you have been preinforming?
should he have been preinforming?
should we have been preinforming?
should you have been preinforming?
should they have been preinforming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I preinform?
shouldn't you preinform?
shouldn't he preinform?
shouldn't we preinform?
shouldn't you preinform?
shouldn't they preinform? 	shouldn't I be preinforming?
shouldn't you be preinforming?
shouldn't he be preinforming?
shouldn't we be preinforming?
shouldn't you be preinforming?
shouldn't they be preinforming? 	shouldn't I have preinformed?
shouldn't you have preinformed?
shouldn't he have preinformed?
shouldn't we have preinformed?
shouldn't you have preinformed?
shouldn't they have preinformed? 	shouldn't I have been preinforming?
shouldn't you have been preinforming?
shouldn't he have been preinforming?
shouldn't we have been preinforming?
shouldn't you have been preinforming?
shouldn't they have been preinforming?