shall preharden
Verbo regular: preharden - prehardened- prehardened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall preharden
you shall preharden
she shall preharden
we shall preharden
you shall preharden
they shall preharden 	I shall be prehardening
you shall be prehardening
she shall be prehardening
we shall be prehardening
you shall be prehardening
they shall be prehardening	I shall have prehardened
you shall have prehardened
she shall have prehardened
we shall have prehardened
you shall have prehardened
they shall have prehardened	I shall have been prehardening
you shall have been prehardening
she shall have been prehardening
we shall have been prehardening
you shall have been prehardening
they shall have been prehardening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall not preharden
you shall not preharden
she shall not preharden
we shall not preharden
you shall not preharden
they shall not preharden 	I shall not be prehardening
you shall not be prehardening
she shall not be prehardening
we shall not be prehardening
you shall not be prehardening
they shall not be prehardening	I shall not have prehardened
you shall not have prehardened
she shall not have prehardened
we shall not have prehardened
you shall not have prehardened
they shall not have prehardened	I shall not have been prehardening
you shall not have been prehardening
she shall not have been prehardening
we shall not have been prehardening
you shall not have been prehardening
they shall not have been prehardening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I preharden?
shall you preharden?
shall she preharden?
shall we preharden?
shall you preharden?
shall they preharden? 	shall I be prehardening?
shall you be prehardening?
shall she be prehardening?
shall we be prehardening?
shall you be prehardening?
shall they be prehardening? 	shall I have prehardened?
shall you have prehardened?
shall she have prehardened?
shall we have prehardened?
shall you have prehardened?
shall they have prehardened? 	shall I have been prehardening?
shall you have been prehardening?
shall she have been prehardening?
shall we have been prehardening?
shall you have been prehardening?
shall they have been prehardening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I not preharden?
shall you not preharden?
shall she not preharden?
shall we not preharden?
shall you not preharden?
shall they not preharden? 	shall I not be prehardening?
shall you not be prehardening?
shall she not be prehardening?
shall we not be prehardening?
shall you not be prehardening?
shall they not be prehardening? 	shall I not have prehardened?
shall you not have prehardened?
shall she not have prehardened?
shall we not have prehardened?
shall you not have prehardened?
shall they not have prehardened? 	shall I not have been prehardening?
shall you not have been prehardening?
shall she not have been prehardening?
shall we not have been prehardening?
shall you not have been prehardening?
shall they not have been prehardening?