English verb conjugation COULD GRAVEL

Regular verb: gravel - gravelled - gravelled

Affirmation

Simple form

I could gravel
you could gravel
he could gravel
we could gravel
you could gravel
they could gravel

V-ing form

I could be gravelling
you could be gravelling
he could be gravelling
we could be gravelling
you could be gravelling
they could be gravelling

Perfect

I could have gravelled
you could have gravelled
he could have gravelled
we could have gravelled
you could have gravelled
they could have gravelled

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I gravel?
could you gravel?
could he gravel?
could we gravel?
could you gravel?
could they gravel?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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