I'll be buttressing you'll be buttressing he'll be buttressing we'll be buttressing you'll be buttressing they'll be buttressing
Perfect
I'll have buttressed you'll have buttressed he'll have buttressed we'll have buttressed you'll have buttressed they'll have buttressed
Perfect en V-ing
I'll have been buttressing you'll have been buttressing he'll have been buttressing we'll have been buttressing you'll have been buttressing they'll have been buttressing
Négation
Forme simple
I shan't buttress you shan't buttress he shan't buttress we shan't buttress you shan't buttress they shan't buttress
Forme en V-ing
I shan't be buttressing you shan't be buttressing he shan't be buttressing we shan't be buttressing you shan't be buttressing they shan't be buttressing
Perfect
I shan't have buttressed you shan't have buttressed he shan't have buttressed we shan't have buttressed you shan't have buttressed they shan't have buttressed
Perfect en V-ing
I shan't have been buttressing you shan't have been buttressing he shan't have been buttressing we shan't have been buttressing you shan't have been buttressing they shan't have been buttressing
Forme interrogative
Forme simple
shall I buttress? shall you buttress? shall he buttress? shall we buttress? shall you buttress? shall they buttress?
Forme en V-ing
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?
Perfect en V-ing
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?
Forme interro-négative
Forme simple
shan't I buttress? shan't you buttress? shan't he buttress? shan't we buttress? shan't you buttress? shan't they buttress?
Forme en V-ing
shan't I be buttressing? shan't you be buttressing? shan't he be buttressing? shan't we be buttressing? shan't you be buttressing? shan't they be buttressing?
Perfect
shan't I have buttressed? shan't you have buttressed? shan't he have buttressed? shan't we have buttressed? shan't you have buttressed? shan't they have buttressed?
Perfect en V-ing
shan't I have been buttressing? shan't you have been buttressing? shan't he have been buttressing? shan't we have been buttressing? shan't you have been buttressing? shan't they have been buttressing?