should preface
Verbo regular: preface - prefaced- prefaced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should preface
you should preface
he should preface
we should preface
you should preface
they should preface 	I should be prefacing
you should be prefacing
he should be prefacing
we should be prefacing
you should be prefacing
they should be prefacing	I should have prefaced
you should have prefaced
he should have prefaced
we should have prefaced
you should have prefaced
they should have prefaced	I should have been prefacing
you should have been prefacing
he should have been prefacing
we should have been prefacing
you should have been prefacing
they should have been prefacing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not preface
you should not preface
he should not preface
we should not preface
you should not preface
they should not preface 	I should not be prefacing
you should not be prefacing
he should not be prefacing
we should not be prefacing
you should not be prefacing
they should not be prefacing	I should not have prefaced
you should not have prefaced
he should not have prefaced
we should not have prefaced
you should not have prefaced
they should not have prefaced	I should not have been prefacing
you should not have been prefacing
he should not have been prefacing
we should not have been prefacing
you should not have been prefacing
they should not have been prefacing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I preface?
should you preface?
should he preface?
should we preface?
should you preface?
should they preface? 	should I be prefacing?
should you be prefacing?
should he be prefacing?
should we be prefacing?
should you be prefacing?
should they be prefacing? 	should I have prefaced?
should you have prefaced?
should he have prefaced?
should we have prefaced?
should you have prefaced?
should they have prefaced? 	should I have been prefacing?
should you have been prefacing?
should he have been prefacing?
should we have been prefacing?
should you have been prefacing?
should they have been prefacing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not preface?
should you not preface?
should he not preface?
should we not preface?
should you not preface?
should they not preface? 	should I not be prefacing?
should you not be prefacing?
should he not be prefacing?
should we not be prefacing?
should you not be prefacing?
should they not be prefacing? 	should I not have prefaced?
should you not have prefaced?
should he not have prefaced?
should we not have prefaced?
should you not have prefaced?
should they not have prefaced? 	should I not have been prefacing?
should you not have been prefacing?
should he not have been prefacing?
should we not have been prefacing?
should you not have been prefacing?
should they not have been prefacing?