should proffer
Verbo regular: proffer - proffered- proffered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should proffer
you should proffer
he should proffer
we should proffer
you should proffer
they should proffer 	I should be proffering
you should be proffering
he should be proffering
we should be proffering
you should be proffering
they should be proffering	I should have proffered
you should have proffered
he should have proffered
we should have proffered
you should have proffered
they should have proffered	I should have been proffering
you should have been proffering
he should have been proffering
we should have been proffering
you should have been proffering
they should have been proffering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not proffer
you should not proffer
he should not proffer
we should not proffer
you should not proffer
they should not proffer 	I should not be proffering
you should not be proffering
he should not be proffering
we should not be proffering
you should not be proffering
they should not be proffering	I should not have proffered
you should not have proffered
he should not have proffered
we should not have proffered
you should not have proffered
they should not have proffered	I should not have been proffering
you should not have been proffering
he should not have been proffering
we should not have been proffering
you should not have been proffering
they should not have been proffering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I proffer?
should you proffer?
should he proffer?
should we proffer?
should you proffer?
should they proffer? 	should I be proffering?
should you be proffering?
should he be proffering?
should we be proffering?
should you be proffering?
should they be proffering? 	should I have proffered?
should you have proffered?
should he have proffered?
should we have proffered?
should you have proffered?
should they have proffered? 	should I have been proffering?
should you have been proffering?
should he have been proffering?
should we have been proffering?
should you have been proffering?
should they have been proffering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not proffer?
should you not proffer?
should he not proffer?
should we not proffer?
should you not proffer?
should they not proffer? 	should I not be proffering?
should you not be proffering?
should he not be proffering?
should we not be proffering?
should you not be proffering?
should they not be proffering? 	should I not have proffered?
should you not have proffered?
should he not have proffered?
should we not have proffered?
should you not have proffered?
should they not have proffered? 	should I not have been proffering?
should you not have been proffering?
should he not have been proffering?
should we not have been proffering?
should you not have been proffering?
should they not have been proffering?