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