should refract
Verbo regular: refract - refracted- refracted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd refract
you'd refract
he'd refract
we'd refract
you'd refract
they'd refract 	I'd be refracting
you'd be refracting
he'd be refracting
we'd be refracting
you'd be refracting
they'd be refracting	I should've refracted
you should've refracted
he should've refracted
we should've refracted
you should've refracted
they should've refracted	I should've been refracting
you should've been refracting
he should've been refracting
we should've been refracting
you should've been refracting
they should've been refracting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't refract
you shouldn't refract
he shouldn't refract
we shouldn't refract
you shouldn't refract
they shouldn't refract 	I shouldn't be refracting
you shouldn't be refracting
he shouldn't be refracting
we shouldn't be refracting
you shouldn't be refracting
they shouldn't be refracting	I shouldn't have refracted
you shouldn't have refracted
he shouldn't have refracted
we shouldn't have refracted
you shouldn't have refracted
they shouldn't have refracted	I shouldn't have been refracting
you shouldn't have been refracting
he shouldn't have been refracting
we shouldn't have been refracting
you shouldn't have been refracting
they shouldn't have been refracting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I refract?
should you refract?
should he refract?
should we refract?
should you refract?
should they refract? 	should I be refracting?
should you be refracting?
should he be refracting?
should we be refracting?
should you be refracting?
should they be refracting? 	should I have refracted?
should you have refracted?
should he have refracted?
should we have refracted?
should you have refracted?
should they have refracted? 	should I have been refracting?
should you have been refracting?
should he have been refracting?
should we have been refracting?
should you have been refracting?
should they have been refracting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I refract?
shouldn't you refract?
shouldn't he refract?
shouldn't we refract?
shouldn't you refract?
shouldn't they refract? 	shouldn't I be refracting?
shouldn't you be refracting?
shouldn't he be refracting?
shouldn't we be refracting?
shouldn't you be refracting?
shouldn't they be refracting? 	shouldn't I have refracted?
shouldn't you have refracted?
shouldn't he have refracted?
shouldn't we have refracted?
shouldn't you have refracted?
shouldn't they have refracted? 	shouldn't I have been refracting?
shouldn't you have been refracting?
shouldn't he have been refracting?
shouldn't we have been refracting?
shouldn't you have been refracting?
shouldn't they have been refracting?