can preface
Verbe régulier : preface - prefaced- prefaced
Traduction française : préfacer - faire précéder 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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	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	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I cannot preface
you cannot preface
he cannot preface
we cannot preface
you cannot preface
they cannot preface 	I cannot be prefacing
you cannot be prefacing
he cannot be prefacing
we cannot be prefacing
you cannot be prefacing
they cannot be prefacing	I cannot have prefaced
you cannot have prefaced
he cannot have prefaced
we cannot have prefaced
you cannot have prefaced
they cannot have prefaced	I cannot have been prefacing
you cannot have been prefacing
he cannot have been prefacing
we cannot have been prefacing
you cannot have been prefacing
they cannot have been prefacing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en 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? 	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? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I not preface?
can you not preface?
can he not preface?
can we not preface?
can you not preface?
can they not preface? 	can I not be prefacing?
can you not be prefacing?
can he not be prefacing?
can we not be prefacing?
can you not be prefacing?
can they not be prefacing? 	can I not have prefaced?
can you not have prefaced?
can he not have prefaced?
can we not have prefaced?
can you not have prefaced?
can they not have prefaced? 	can I not have been prefacing?
can you not have been prefacing?
can he not have been prefacing?
can we not have been prefacing?
can you not have been prefacing?
can they not have been prefacing?