Conjugação do verbo inglês
SHALL STIFFEN

Verbo regular: stiffen - stiffened - stiffened

Afirmação

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

Negação

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

Forma interrogativa

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