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 couldn't vouch
you couldn't vouch
he couldn't vouch
we couldn't vouch
you couldn't vouch
they couldn't vouch

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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