English verb conjugation COULD FURTHER

Regular verb: further - furthered - furthered

Affirmation

Simple form

I could further
you could further
she could further
we could further
you could further
they could further

V-ing form

I could be furthering
you could be furthering
she could be furthering
we could be furthering
you could be furthering
they could be furthering

Perfect

I could have furthered
you could have furthered
she 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
she 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
she 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
she 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
she 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
she 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 she further?
could we further?
could you further?
could they further?

V-ing form

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

Perfect

could I have furthered?
could you have furthered?
could she 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 she 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 she 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 she 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 she 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 she 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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