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