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