English verb conjugation COULD PREFACE

Regular verb: preface - prefaced - prefaced

Affirmation

Simple form

I could preface
you could preface
he could preface
we could preface
you could preface
they could preface

V-ing form

I could be prefacing
you could be prefacing
he could be prefacing
we could be prefacing
you could be prefacing
they could be prefacing

Perfect

I could have prefaced
you could have prefaced
he could have prefaced
we could have prefaced
you could have prefaced
they could have prefaced

V-ing perfect

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

Negation

Simple form

I could not preface
you could not preface
he could not preface
we could not preface
you could not preface
they could not preface

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I preface?
could you preface?
could he preface?
could we preface?
could you preface?
could they preface?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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