shall buttress
Verbo regular: buttress - buttressed- buttressed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shall buttress
you shall buttress
he shall buttress
we shall buttress
you shall buttress
they shall buttress 	I shall be buttressing
you shall be buttressing
he shall be buttressing
we shall be buttressing
you shall be buttressing
they shall be buttressing	I shall have buttressed
you shall have buttressed
he shall have buttressed
we shall have buttressed
you shall have buttressed
they shall have buttressed	I shall have been buttressing
you shall have been buttressing
he shall have been buttressing
we shall have been buttressing
you shall have been buttressing
they shall have been buttressing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shall not buttress
you shall not buttress
he shall not buttress
we shall not buttress
you shall not buttress
they shall not buttress 	I shall not be buttressing
you shall not be buttressing
he shall not be buttressing
we shall not be buttressing
you shall not be buttressing
they shall not be buttressing	I shall not have buttressed
you shall not have buttressed
he shall not have buttressed
we shall not have buttressed
you shall not have buttressed
they shall not have buttressed	I shall not have been buttressing
you shall not have been buttressing
he shall not have been buttressing
we shall not have been buttressing
you shall not have been buttressing
they shall not have been buttressing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shall I buttress?
shall you buttress?
shall he buttress?
shall we buttress?
shall you buttress?
shall they buttress? 	shall I be buttressing?
shall you be buttressing?
shall he be buttressing?
shall we be buttressing?
shall you be buttressing?
shall they be buttressing? 	shall I have buttressed?
shall you have buttressed?
shall he have buttressed?
shall we have buttressed?
shall you have buttressed?
shall they have buttressed? 	shall I have been buttressing?
shall you have been buttressing?
shall he have been buttressing?
shall we have been buttressing?
shall you have been buttressing?
shall they have been buttressing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shall I not buttress?
shall you not buttress?
shall he not buttress?
shall we not buttress?
shall you not buttress?
shall they not buttress? 	shall I not be buttressing?
shall you not be buttressing?
shall he not be buttressing?
shall we not be buttressing?
shall you not be buttressing?
shall they not be buttressing? 	shall I not have buttressed?
shall you not have buttressed?
shall he not have buttressed?
shall we not have buttressed?
shall you not have buttressed?
shall they not have buttressed? 	shall I not have been buttressing?
shall you not have been buttressing?
shall he not have been buttressing?
shall we not have been buttressing?
shall you not have been buttressing?
shall they not have been buttressing?