shall unbutton
Verbo regular: unbutton - unbuttoned- unbuttoned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall unbutton
you shall unbutton
she shall unbutton
we shall unbutton
you shall unbutton
they shall unbutton 	I shall be unbuttoning
you shall be unbuttoning
she shall be unbuttoning
we shall be unbuttoning
you shall be unbuttoning
they shall be unbuttoning	I shall have unbuttoned
you shall have unbuttoned
she shall have unbuttoned
we shall have unbuttoned
you shall have unbuttoned
they shall have unbuttoned	I shall have been unbuttoning
you shall have been unbuttoning
she shall have been unbuttoning
we shall have been unbuttoning
you shall have been unbuttoning
they shall have been unbuttoning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shall not unbutton
you shall not unbutton
she shall not unbutton
we shall not unbutton
you shall not unbutton
they shall not unbutton 	I shall not be unbuttoning
you shall not be unbuttoning
she shall not be unbuttoning
we shall not be unbuttoning
you shall not be unbuttoning
they shall not be unbuttoning	I shall not have unbuttoned
you shall not have unbuttoned
she shall not have unbuttoned
we shall not have unbuttoned
you shall not have unbuttoned
they shall not have unbuttoned	I shall not have been unbuttoning
you shall not have been unbuttoning
she shall not have been unbuttoning
we shall not have been unbuttoning
you shall not have been unbuttoning
they shall not have been unbuttoning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I unbutton?
shall you unbutton?
shall she unbutton?
shall we unbutton?
shall you unbutton?
shall they unbutton? 	shall I be unbuttoning?
shall you be unbuttoning?
shall she be unbuttoning?
shall we be unbuttoning?
shall you be unbuttoning?
shall they be unbuttoning? 	shall I have unbuttoned?
shall you have unbuttoned?
shall she have unbuttoned?
shall we have unbuttoned?
shall you have unbuttoned?
shall they have unbuttoned? 	shall I have been unbuttoning?
shall you have been unbuttoning?
shall she have been unbuttoning?
shall we have been unbuttoning?
shall you have been unbuttoning?
shall they have been unbuttoning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shall I not unbutton?
shall you not unbutton?
shall she not unbutton?
shall we not unbutton?
shall you not unbutton?
shall they not unbutton? 	shall I not be unbuttoning?
shall you not be unbuttoning?
shall she not be unbuttoning?
shall we not be unbuttoning?
shall you not be unbuttoning?
shall they not be unbuttoning? 	shall I not have unbuttoned?
shall you not have unbuttoned?
shall she not have unbuttoned?
shall we not have unbuttoned?
shall you not have unbuttoned?
shall they not have unbuttoned? 	shall I not have been unbuttoning?
shall you not have been unbuttoning?
shall she not have been unbuttoning?
shall we not have been unbuttoning?
shall you not have been unbuttoning?
shall they not have been unbuttoning?