English verb conjugation CAN DARKEN

Regular verb: darken - darkened - darkened

Affirmation

Simple form

I can darken
you can darken
she can darken
we can darken
you can darken
they can darken

V-ing form

I can be darkening
you can be darkening
she can be darkening
we can be darkening
you can be darkening
they can be darkening

Perfect

I can have darkened
you can have darkened
she can have darkened
we can have darkened
you can have darkened
they can have darkened

V-ing perfect

I can have been darkening
you can have been darkening
she can have been darkening
we can have been darkening
you can have been darkening
they can have been darkening

Negation

Simple form

I can't darken
you can't darken
she can't darken
we can't darken
you can't darken
they can't darken

V-ing form

I can't be darkening
you can't be darkening
she can't be darkening
we can't be darkening
you can't be darkening
they can't be darkening

Perfect

I can't have darkened
you can't have darkened
she can't have darkened
we can't have darkened
you can't have darkened
they can't have darkened

V-ing perfect

I can't have been darkening
you can't have been darkening
she can't have been darkening
we can't have been darkening
you can't have been darkening
they can't have been darkening

Interrogative form

Simple form

can I darken?
can you darken?
can she darken?
can we darken?
can you darken?
can they darken?

V-ing form

can I be darkening?
can you be darkening?
can she be darkening?
can we be darkening?
can you be darkening?
can they be darkening?

Perfect

can I have darkened?
can you have darkened?
can she have darkened?
can we have darkened?
can you have darkened?
can they have darkened?

V-ing perfect

can I have been darkening?
can you have been darkening?
can she have been darkening?
can we have been darkening?
can you have been darkening?
can they have been darkening?

Interro-negative form

Simple form

can't I darken?
can't you darken?
can't she darken?
can't we darken?
can't you darken?
can't they darken?

V-ing form

can't I be darkening?
can't you be darkening?
can't she be darkening?
can't we be darkening?
can't you be darkening?
can't they be darkening?

Perfect

can't I have darkened?
can't you have darkened?
can't she have darkened?
can't we have darkened?
can't you have darkened?
can't they have darkened?

V-ing perfect

can't I have been darkening?
can't you have been darkening?
can't she have been darkening?
can't we have been darkening?
can't you have been darkening?
can't they have been darkening?

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