English verb conjugation COULD OVERGRADE

Regular verb: overgrade - overgraded - overgraded

Affirmation

Simple form

I could overgrade
you could overgrade
he could overgrade
we could overgrade
you could overgrade
they could overgrade

V-ing form

I could be overgrading
you could be overgrading
he could be overgrading
we could be overgrading
you could be overgrading
they could be overgrading

Perfect

I could have overgraded
you could have overgraded
he could have overgraded
we could have overgraded
you could have overgraded
they could have overgraded

V-ing perfect

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

Negation

Simple form

I could not overgrade
you could not overgrade
he could not overgrade
we could not overgrade
you could not overgrade
they could not overgrade

V-ing form

I could not be overgrading
you could not be overgrading
he could not be overgrading
we could not be overgrading
you could not be overgrading
they could not be overgrading

Perfect

I could not have overgraded
you could not have overgraded
he could not have overgraded
we could not have overgraded
you could not have overgraded
they could not have overgraded

V-ing perfect

I could not have been overgrading
you could not have been overgrading
he could not have been overgrading
we could not have been overgrading
you could not have been overgrading
they could not have been overgrading

Interrogative form

Simple form

could I overgrade?
could you overgrade?
could he overgrade?
could we overgrade?
could you overgrade?
could they overgrade?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not overgrade?
could you not overgrade?
could he not overgrade?
could we not overgrade?
could you not overgrade?
could they not overgrade?

V-ing form

could I not be overgrading?
could you not be overgrading?
could he not be overgrading?
could we not be overgrading?
could you not be overgrading?
could they not be overgrading?

Perfect

could I not have overgraded?
could you not have overgraded?
could he not have overgraded?
could we not have overgraded?
could you not have overgraded?
could they not have overgraded?

V-ing perfect

could I not have been overgrading?
could you not have been overgrading?
could he not have been overgrading?
could we not have been overgrading?
could you not have been overgrading?
could they not have been overgrading?

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