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