I'll center you'll center he'll center we'll center you'll center they'll center
V-ing form
I'll be centering you'll be centering he'll be centering we'll be centering you'll be centering they'll be centering
Perfect
I'll have centered you'll have centered he'll have centered we'll have centered you'll have centered they'll have centered
V-ing perfect
I'll have been centering you'll have been centering he'll have been centering we'll have been centering you'll have been centering they'll have been centering
Negation
Simple form
I shan't center you shan't center he shan't center we shan't center you shan't center they shan't center
V-ing form
I shan't be centering you shan't be centering he shan't be centering we shan't be centering you shan't be centering they shan't be centering
Perfect
I shan't have centered you shan't have centered he shan't have centered we shan't have centered you shan't have centered they shan't have centered
V-ing perfect
I shan't have been centering you shan't have been centering he shan't have been centering we shan't have been centering you shan't have been centering they shan't have been centering
Interrogative form
Simple form
shall I center? shall you center? shall he center? shall we center? shall you center? shall they center?
V-ing form
shall I be centering? shall you be centering? shall he be centering? shall we be centering? shall you be centering? shall they be centering?
Perfect
shall I have centered? shall you have centered? shall he have centered? shall we have centered? shall you have centered? shall they have centered?
V-ing perfect
shall I have been centering? shall you have been centering? shall he have been centering? shall we have been centering? shall you have been centering? shall they have been centering?
Interro-negative form
Simple form
shan't I center? shan't you center? shan't he center? shan't we center? shan't you center? shan't they center?
V-ing form
shan't I be centering? shan't you be centering? shan't he be centering? shan't we be centering? shan't you be centering? shan't they be centering?
Perfect
shan't I have centered? shan't you have centered? shan't he have centered? shan't we have centered? shan't you have centered? shan't they have centered?
V-ing perfect
shan't I have been centering? shan't you have been centering? shan't he have been centering? shan't we have been centering? shan't you have been centering? shan't they have been centering?