I can darken you can darken he can darken we can darken you can darken they can darken
Forma com V-ing
I can be darkening you can be darkening he can be darkening we can be darkening you can be darkening they can be darkening
Perfeito
I can have darkened you can have darkened he can have darkened we can have darkened you can have darkened they can have darkened
Perfeito com V-ing
I can have been darkening you can have been darkening he can have been darkening we can have been darkening you can have been darkening they can have been darkening
Negação
Forma simple
I can't darken you can't darken he can't darken we can't darken you can't darken they can't darken
Forma com V-ing
I can't be darkening you can't be darkening he can't be darkening we can't be darkening you can't be darkening they can't be darkening
Perfeito
I can't have darkened you can't have darkened he can't have darkened we can't have darkened you can't have darkened they can't have darkened
Perfeito com V-ing
I can't have been darkening you can't have been darkening he can't have been darkening we can't have been darkening you can't have been darkening they can't have been darkening
Forma interrogativa
Forma simple
can I darken? can you darken? can he darken? can we darken? can you darken? can they darken?
Forma com V-ing
can I be darkening? can you be darkening? can he be darkening? can we be darkening? can you be darkening? can they be darkening?
Perfeito
can I have darkened? can you have darkened? can he have darkened? can we have darkened? can you have darkened? can they have darkened?
Perfeito com V-ing
can I have been darkening? can you have been darkening? can he have been darkening? can we have been darkening? can you have been darkening? can they have been darkening?
Forma interro-Negação
Forma simple
can't I darken? can't you darken? can't he darken? can't we darken? can't you darken? can't they darken?
Forma com V-ing
can't I be darkening? can't you be darkening? can't he be darkening? can't we be darkening? can't you be darkening? can't they be darkening?
Perfeito
can't I have darkened? can't you have darkened? can't he have darkened? can't we have darkened? can't you have darkened? can't they have darkened?
Perfeito com V-ing
can't I have been darkening? can't you have been darkening? can't he have been darkening? can't we have been darkening? can't you have been darkening? can't they have been darkening?