English verb conjugation COULD LIGHTEN

Regular verb: lighten - lightened - lightened

Affirmation

Simple form

I could lighten
you could lighten
he could lighten
we could lighten
you could lighten
they could lighten

V-ing form

I could be lightening
you could be lightening
he could be lightening
we could be lightening
you could be lightening
they could be lightening

Perfect

I could have lightened
you could have lightened
he could have lightened
we could have lightened
you could have lightened
they could have lightened

V-ing perfect

I could have been lightening
you could have been lightening
he could have been lightening
we could have been lightening
you could have been lightening
they could have been lightening

Negation

Simple form

I couldn't lighten
you couldn't lighten
he couldn't lighten
we couldn't lighten
you couldn't lighten
they couldn't lighten

V-ing form

I couldn't be lightening
you couldn't be lightening
he couldn't be lightening
we couldn't be lightening
you couldn't be lightening
they couldn't be lightening

Perfect

I couldn't have lightened
you couldn't have lightened
he couldn't have lightened
we couldn't have lightened
you couldn't have lightened
they couldn't have lightened

V-ing perfect

I couldn't have been lightening
you couldn't have been lightening
he couldn't have been lightening
we couldn't have been lightening
you couldn't have been lightening
they couldn't have been lightening

Interrogative form

Simple form

could I lighten?
could you lighten?
could he lighten?
could we lighten?
could you lighten?
could they lighten?

V-ing form

could I be lightening?
could you be lightening?
could he be lightening?
could we be lightening?
could you be lightening?
could they be lightening?

Perfect

could I have lightened?
could you have lightened?
could he have lightened?
could we have lightened?
could you have lightened?
could they have lightened?

V-ing perfect

could I have been lightening?
could you have been lightening?
could he have been lightening?
could we have been lightening?
could you have been lightening?
could they have been lightening?

Interro-negative form

Simple form

couldn't I lighten?
couldn't you lighten?
couldn't he lighten?
couldn't we lighten?
couldn't you lighten?
couldn't they lighten?

V-ing form

couldn't I be lightening?
couldn't you be lightening?
couldn't he be lightening?
couldn't we be lightening?
couldn't you be lightening?
couldn't they be lightening?

Perfect

couldn't I have lightened?
couldn't you have lightened?
couldn't he have lightened?
couldn't we have lightened?
couldn't you have lightened?
couldn't they have lightened?

V-ing perfect

couldn't I have been lightening?
couldn't you have been lightening?
couldn't he have been lightening?
couldn't we have been lightening?
couldn't you have been lightening?
couldn't they have been lightening?

Page top