English verb conjugation COULD FURTHER

Regular verb: further - furthered - furthered

Affirmation

Simple form

I could further
you could further
he could further
we could further
you could further
they could further

V-ing form

I could be furthering
you could be furthering
he could be furthering
we could be furthering
you could be furthering
they could be furthering

Perfect

I could have furthered
you could have furthered
he could have furthered
we could have furthered
you could have furthered
they could have furthered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I further?
could you further?
could he further?
could we further?
could you further?
could they further?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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