English verb conjugation COULD VOUCH

Regular verb: vouch - vouched - vouched

Affirmation

Simple form

I could vouch
you could vouch
he could vouch
we could vouch
you could vouch
they could vouch

V-ing form

I could be vouching
you could be vouching
he could be vouching
we could be vouching
you could be vouching
they could be vouching

Perfect

I could have vouched
you could have vouched
he could have vouched
we could have vouched
you could have vouched
they could have vouched

V-ing perfect

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

Negation

Simple form

I could not vouch
you could not vouch
he could not vouch
we could not vouch
you could not vouch
they could not vouch

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I vouch?
could you vouch?
could he vouch?
could we vouch?
could you vouch?
could they vouch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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