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