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