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