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