Conjugação do verbo inglês
CAN PREFACE

Verbo regular: preface - prefaced - prefaced

Afirmação

Forma simple	Forma com V-ing
I can preface you can preface he can preface we can preface you can preface they can preface	I can be prefacing you can be prefacing he can be prefacing we can be prefacing you can be prefacing they can be prefacing
Perfeito	Perfeito com V-ing
I can have prefaced you can have prefaced he can have prefaced we can have prefaced you can have prefaced they can have prefaced	I can have been prefacing you can have been prefacing he can have been prefacing we can have been prefacing you can have been prefacing they can have been prefacing

Negação

Forma simple	Forma com V-ing
I can't preface you can't preface he can't preface we can't preface you can't preface they can't preface	I can't be prefacing you can't be prefacing he can't be prefacing we can't be prefacing you can't be prefacing they can't be prefacing
Perfeito	Perfeito com V-ing
I can't have prefaced you can't have prefaced he can't have prefaced we can't have prefaced you can't have prefaced they can't have prefaced	I can't have been prefacing you can't have been prefacing he can't have been prefacing we can't have been prefacing you can't have been prefacing they can't have been prefacing

Forma interrogativa

Forma simple	Forma com V-ing
can I preface? can you preface? can he preface? can we preface? can you preface? can they preface?	can I be prefacing? can you be prefacing? can he be prefacing? can we be prefacing? can you be prefacing? can they be prefacing?
Perfeito	Perfeito com V-ing
can I have prefaced? can you have prefaced? can he have prefaced? can we have prefaced? can you have prefaced? can they have prefaced?	can I have been prefacing? can you have been prefacing? can he have been prefacing? can we have been prefacing? can you have been prefacing? can they have been prefacing?

Forma interro-Negação

Forma simple	Forma com V-ing
can't I preface? can't you preface? can't he preface? can't we preface? can't you preface? can't they preface?	can't I be prefacing? can't you be prefacing? can't he be prefacing? can't we be prefacing? can't you be prefacing? can't they be prefacing?
Perfeito	Perfeito com V-ing
can't I have prefaced? can't you have prefaced? can't he have prefaced? can't we have prefaced? can't you have prefaced? can't they have prefaced?	can't I have been prefacing? can't you have been prefacing? can't he have been prefacing? can't we have been prefacing? can't you have been prefacing? can't they have been prefacing?