Conjugación del verbo inglés COULD PREFACE
Verbo regular: preface - prefaced - prefaced
Afirmación
Forma simple
I could prefaceyou could preface
he could preface
we could preface
you could preface
they could preface
Forma con V-ing
I could be prefacingyou could be prefacing
he could be prefacing
we could be prefacing
you could be prefacing
they could be prefacing
Perfecto
I could have prefacedyou could have prefaced
he could have prefaced
we could have prefaced
you could have prefaced
they could have prefaced
Perfecto con V-ing
I could have been prefacingyou could have been prefacing
he could have been prefacing
we could have been prefacing
you could have been prefacing
they could have been prefacing
Negación
Forma simple
I couldn't prefaceyou couldn't preface
he couldn't preface
we couldn't preface
you couldn't preface
they couldn't preface
Forma con V-ing
I couldn't be prefacingyou couldn't be prefacing
he couldn't be prefacing
we couldn't be prefacing
you couldn't be prefacing
they couldn't be prefacing
Perfecto
I couldn't have prefacedyou couldn't have prefaced
he couldn't have prefaced
we couldn't have prefaced
you couldn't have prefaced
they couldn't have prefaced
Perfecto con V-ing
I couldn't have been prefacingyou 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
Forma interrogativa
Forma simple
could I preface?could you preface?
could he preface?
could we preface?
could you preface?
could they preface?
Forma con V-ing
could I be prefacing?could you be prefacing?
could he be prefacing?
could we be prefacing?
could you be prefacing?
could they be prefacing?
Perfecto
could I have prefaced?could you have prefaced?
could he have prefaced?
could we have prefaced?
could you have prefaced?
could they have prefaced?
Perfecto con V-ing
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?
Forma interro-negativa
Forma simple
couldn't I preface?couldn't you preface?
couldn't he preface?
couldn't we preface?
couldn't you preface?
couldn't they preface?
Forma con V-ing
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?
Perfecto
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?
Perfecto con V-ing
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?