English verb conjugation COULD VITIATE

Regular verb: vitiate - vitiated - vitiated

Affirmation

Simple form

I could vitiate
you could vitiate
he could vitiate
we could vitiate
you could vitiate
they could vitiate

V-ing form

I could be vitiating
you could be vitiating
he could be vitiating
we could be vitiating
you could be vitiating
they could be vitiating

Perfect

I could have vitiated
you could have vitiated
he could have vitiated
we could have vitiated
you could have vitiated
they could have vitiated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I vitiate?
could you vitiate?
could he vitiate?
could we vitiate?
could you vitiate?
could they vitiate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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