I shall buttress you shall buttress he shall buttress we shall buttress you shall buttress they shall buttress
V-ing form
I shall be buttressing you shall be buttressing he shall be buttressing we shall be buttressing you shall be buttressing they shall be buttressing
Perfect
I shall have buttressed you shall have buttressed he shall have buttressed we shall have buttressed you shall have buttressed they shall have buttressed
V-ing perfect
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
Negation
Simple form
I shall not buttress you shall not buttress he shall not buttress we shall not buttress you shall not buttress they shall not buttress
V-ing form
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
Perfect
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
V-ing perfect
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
Interrogative form
Simple form
shall I buttress? shall you buttress? shall he buttress? shall we buttress? shall you buttress? shall they buttress?
V-ing form
shall I be buttressing? shall you be buttressing? shall he be buttressing? shall we be buttressing? shall you be buttressing? shall they be buttressing?
Perfect
shall I have buttressed? shall you have buttressed? shall he have buttressed? shall we have buttressed? shall you have buttressed? shall they have buttressed?
V-ing perfect
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?
Interro-negative form
Simple form
shall I not buttress? shall you not buttress? shall he not buttress? shall we not buttress? shall you not buttress? shall they not buttress?
V-ing form
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?
Perfect
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?
V-ing perfect
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?