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