I'll be sniggering you'll be sniggering she'll be sniggering we'll be sniggering you'll be sniggering they'll be sniggering
Perfect
I'll have sniggered you'll have sniggered she'll have sniggered we'll have sniggered you'll have sniggered they'll have sniggered
V-ing perfect
I'll have been sniggering you'll have been sniggering she'll have been sniggering we'll have been sniggering you'll have been sniggering they'll have been sniggering
Negation
Simple form
I shan't snigger you shan't snigger she shan't snigger we shan't snigger you shan't snigger they shan't snigger
V-ing form
I shan't be sniggering you shan't be sniggering she shan't be sniggering we shan't be sniggering you shan't be sniggering they shan't be sniggering
Perfect
I shan't have sniggered you shan't have sniggered she shan't have sniggered we shan't have sniggered you shan't have sniggered they shan't have sniggered
V-ing perfect
I shan't have been sniggering you shan't have been sniggering she shan't have been sniggering we shan't have been sniggering you shan't have been sniggering they shan't have been sniggering
Interrogative form
Simple form
shall I snigger? shall you snigger? shall she snigger? shall we snigger? shall you snigger? shall they snigger?
V-ing form
shall I be sniggering? shall you be sniggering? shall she be sniggering? shall we be sniggering? shall you be sniggering? shall they be sniggering?
Perfect
shall I have sniggered? shall you have sniggered? shall she have sniggered? shall we have sniggered? shall you have sniggered? shall they have sniggered?
V-ing perfect
shall I have been sniggering? shall you have been sniggering? shall she have been sniggering? shall we have been sniggering? shall you have been sniggering? shall they have been sniggering?
Interro-negative form
Simple form
shan't I snigger? shan't you snigger? shan't she snigger? shan't we snigger? shan't you snigger? shan't they snigger?
V-ing form
shan't I be sniggering? shan't you be sniggering? shan't she be sniggering? shan't we be sniggering? shan't you be sniggering? shan't they be sniggering?
Perfect
shan't I have sniggered? shan't you have sniggered? shan't she have sniggered? shan't we have sniggered? shan't you have sniggered? shan't they have sniggered?
V-ing perfect
shan't I have been sniggering? shan't you have been sniggering? shan't she have been sniggering? shan't we have been sniggering? shan't you have been sniggering? shan't they have been sniggering?