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 couldn't preface
you couldn't preface
he couldn't preface
we couldn't preface
you couldn't preface
they couldn't preface

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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