would stiffen
Verbo regular: stiffen - stiffened- stiffened

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I would stiffen
you would stiffen
he would stiffen
we would stiffen
you would stiffen
they would stiffen 	I would be stiffening
you would be stiffening
he would be stiffening
we would be stiffening
you would be stiffening
they would be stiffening	I would have stiffened
you would have stiffened
he would have stiffened
we would have stiffened
you would have stiffened
they would have stiffened	I would have been stiffening
you would have been stiffening
he would have been stiffening
we would have been stiffening
you would have been stiffening
they would have been stiffening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I would not stiffen
you would not stiffen
he would not stiffen
we would not stiffen
you would not stiffen
they would not stiffen 	I would not be stiffening
you would not be stiffening
he would not be stiffening
we would not be stiffening
you would not be stiffening
they would not be stiffening	I would not have stiffened
you would not have stiffened
he would not have stiffened
we would not have stiffened
you would not have stiffened
they would not have stiffened	I would not have been stiffening
you would not have been stiffening
he would not have been stiffening
we would not have been stiffening
you would not have been stiffening
they would not have been stiffening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
would I stiffen?
would you stiffen?
would he stiffen?
would we stiffen?
would you stiffen?
would they stiffen? 	would I be stiffening?
would you be stiffening?
would he be stiffening?
would we be stiffening?
would you be stiffening?
would they be stiffening? 	would I have stiffened?
would you have stiffened?
would he have stiffened?
would we have stiffened?
would you have stiffened?
would they have stiffened? 	would I have been stiffening?
would you have been stiffening?
would he have been stiffening?
would we have been stiffening?
would you have been stiffening?
would they have been stiffening? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
would I not stiffen?
would you not stiffen?
would he not stiffen?
would we not stiffen?
would you not stiffen?
would they not stiffen? 	would I not be stiffening?
would you not be stiffening?
would he not be stiffening?
would we not be stiffening?
would you not be stiffening?
would they not be stiffening? 	would I not have stiffened?
would you not have stiffened?
would he not have stiffened?
would we not have stiffened?
would you not have stiffened?
would they not have stiffened? 	would I not have been stiffening?
would you not have been stiffening?
would he not have been stiffening?
would we not have been stiffening?
would you not have been stiffening?
would they not have been stiffening?