should smarten
Regular verb: smarten - smartened- smartened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd smarten
you'd smarten
he'd smarten
we'd smarten
you'd smarten
they'd smarten 	I'd be smartening
you'd be smartening
he'd be smartening
we'd be smartening
you'd be smartening
they'd be smartening	I should've smartened
you should've smartened
he should've smartened
we should've smartened
you should've smartened
they should've smartened	I should've been smartening
you should've been smartening
he should've been smartening
we should've been smartening
you should've been smartening
they should've been smartening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't smarten
you shouldn't smarten
he shouldn't smarten
we shouldn't smarten
you shouldn't smarten
they shouldn't smarten 	I shouldn't be smartening
you shouldn't be smartening
he shouldn't be smartening
we shouldn't be smartening
you shouldn't be smartening
they shouldn't be smartening	I shouldn't have smartened
you shouldn't have smartened
he shouldn't have smartened
we shouldn't have smartened
you shouldn't have smartened
they shouldn't have smartened	I shouldn't have been smartening
you shouldn't have been smartening
he shouldn't have been smartening
we shouldn't have been smartening
you shouldn't have been smartening
they shouldn't have been smartening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I smarten?
should you smarten?
should he smarten?
should we smarten?
should you smarten?
should they smarten? 	should I be smartening?
should you be smartening?
should he be smartening?
should we be smartening?
should you be smartening?
should they be smartening? 	should I have smartened?
should you have smartened?
should he have smartened?
should we have smartened?
should you have smartened?
should they have smartened? 	should I have been smartening?
should you have been smartening?
should he have been smartening?
should we have been smartening?
should you have been smartening?
should they have been smartening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I smarten?
shouldn't you smarten?
shouldn't he smarten?
shouldn't we smarten?
shouldn't you smarten?
shouldn't they smarten? 	shouldn't I be smartening?
shouldn't you be smartening?
shouldn't he be smartening?
shouldn't we be smartening?
shouldn't you be smartening?
shouldn't they be smartening? 	shouldn't I have smartened?
shouldn't you have smartened?
shouldn't he have smartened?
shouldn't we have smartened?
shouldn't you have smartened?
shouldn't they have smartened? 	shouldn't I have been smartening?
shouldn't you have been smartening?
shouldn't he have been smartening?
shouldn't we have been smartening?
shouldn't you have been smartening?
shouldn't they have been smartening?