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