shall stiffen
Verbo regular: stiffen - stiffened- stiffened

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

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shan't stiffen
you shan't stiffen
he shan't stiffen
we shan't stiffen
you shan't stiffen
they shan't stiffen 	I shan't be stiffening
you shan't be stiffening
he shan't be stiffening
we shan't be stiffening
you shan't be stiffening
they shan't be stiffening	I shan't have stiffened
you shan't have stiffened
he shan't have stiffened
we shan't have stiffened
you shan't have stiffened
they shan't have stiffened	I shan't have been stiffening
you shan't have been stiffening
he shan't have been stiffening
we shan't have been stiffening
you shan't have been stiffening
they shan't have been stiffening	

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

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